{"title":"Sky-Watcher Skymax","description":"\u003cp\u003eThe Sky-Watcher Skymax line, listed by aperture. Part of \u003ca href=\"\/collections\/sky-watcher-telescopes\"\u003eSky-Watcher Telescopes\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"sky-watcher-skymax-180","title":"Sky-Watcher Skymax 180","description":"\u003cspan style=\"color: rgb(76, 81, 84); font-family: \" open sans sans-serif rgb font-size:=\"\" background-color:=\"\"\u003eThe Sky-Watcher Skymax Maksutov-Cassegrains are the ultimate take-anywhere telescopes. Despite their small dimensions they pack a powerful punch. Their high-resolution, diffraction-limited optical systems are multi-coated to maximize contrast and image sharpness.\u003c\/span\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44013584908399,"sku":"S11540","price":2330.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/s11540_180mmmak_leftfront_1800x1800__67111.jpg?v=1766557039"},{"product_id":"skymax-127-az-gti","title":"Skymax 127 AZ-GTi","description":"\u003ch2\u003ePerfect for any Situation\u003c\/h2\u003e\n\u003cp\u003eSky-Watcher’s AZ-GTi is the perfect tracking platform for those seeking a compact travel mount capable of both alt-az GoTo alignment and video timelapse. Boasting a payload capacity of 11-pounds, this modular AZ mount can support anything from a small Maksutov or refractor, to a mid-sized DSLR for timelapse photography. Weighing just 8.6-pounds, the AZ-GTi is the ideal travel mount, easily fitting in carry-on luggage and perfect for grab-and-go situations.\u003c\/p\u003e\n\u003ch2\u003eRevolutionary WiFi Control\u003c\/h2\u003e\n\u003cp\u003eThe AZ-GTi is one of the first Sky-Watcher products featuring built in Wi-Fi control. Once connected to the mount, use Sky-Watcher’s SynScan Pro app to align the mount for celestial tracking.\u003c\/p\u003e\n\u003ch2\u003eEasy Integration with any Tripod\u003c\/h2\u003e\n\u003cp\u003eThe AZ-GTi includes an adjustable aluminum tripod with built-in pier extension. The mount can attach to a tripod using a 3.8-inch-16 thread and includes an adapter for ¼-inch-20 thread sizes, making it capable of mounting to nearly any tripod.\u003c\/p\u003e\n\u003ch2\u003eAutomatic Shutter Release Control\u003c\/h2\u003e\n\u003cp\u003eNo need for an intervelometer timer with the AZ-GTi! With a 60-second preset exposure setting, the AZ-GTi can trigger a DSLR using the auxiliary shutter release cable. Once the camera is plugged into the mount and a shot is fired, it will continually shoot 60 second exposures until the cable is removed.\u003c\/p\u003e\n\u003ch2\u003eIncluded Accesories\u003c\/h2\u003e\n\u003cp\u003eThe 127mm OTA comes with a red dot finder, 1.25-inch diagonal, and Super 10 and 25mm eyepieces.\u003c\/p\u003e\n\u003cp\u003eThe AZ-GTi come with the mount head, pier extension, and tripod.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/i8TGlIkebP4\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44014077706351,"sku":"S21130","price":1380.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/AZ-GTi127_Main_1800x1800__65643.jpg?v=1766569906"},{"product_id":"skymax-102-az-gti","title":"Skymax 102 AZ-GTi","description":"\u003ch2\u003ePerfect for any Situation\u003c\/h2\u003e\n\u003cp\u003eSky-Watcher’s AZ-GTi is the perfect tracking platform for those seeking a compact travel mount capable of both Alt-Az GoTo alignment and video timelapse. Boasting a payload capacity of 11 pounds, this modular AZ mount can support anything from a small Maksutov or refractor, to a mid-sized DSLR for timelapse photography. Weighing just 8.6-pounds, the AZ-GTi is the ideal travel mount, easily fitting in carry-on luggage and perfect for grab-and-go situations.\u003c\/p\u003e\n\u003ch2\u003eRevolutionary WiFi Control\u003c\/h2\u003e\n\u003cp\u003eThe AZ-GTi is one of the first Sky-Watcher products featuring built in Wi-Fi control. Once connected to the mount, use Sky-Watcher’s SynScan Pro app to align the mount for celestial tracking.\u003c\/p\u003e\n\u003ch2\u003eEasy Integration with any Tripod\u003c\/h2\u003e\n\u003cp\u003eThe AZ-GTi includes an adjustable aluminum tripod with built-in pier extension. The mount can attach to a tripod using a 3.8-inch-16 thread and includes an adapter for ¼-inch-20 thread sizes, making it capable of mounting to nearly any tripod.\u003c\/p\u003e\n\u003ch2\u003eAutomatic Shutter Release Control\u003c\/h2\u003e\n\u003cp\u003eNo need for an intervelometer timer with the AZ-GTi! With a 60-second preset exposure setting, the AZ-GTi can trigger a DSLR using the auxiliary shutter release cable. Once the camera is plugged into the mount and a shot is fired, it will continually shoot 60 second exposures until the cable is removed.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 102mm OTA comes with a red dot finder, 1¼-inch diagonal, and Super 10 and 25mm eyepieces.\u003c\/p\u003e\n\u003cp\u003eThe AZ-GTi come with the mount head, pier extension, and tripod.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/i8TGlIkebP4\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44014077804655,"sku":"S21120","price":1060.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/AZ-GTi102_Main_1800x1800__19152.jpg?v=1766569913"},{"product_id":"sky-watcher-skymax-102-maksutov-cassegrain-ota","title":"Sky-Watcher Skymax 102 Maksutov-Cassegrain OTA","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Skymax 102 is a 102 mm Maksutov-Cassegrain optical tube working at 1300 mm of focal length and f\/12.7. The Maksutov layout folds that long focal length into a tube 12.25 inches long and 4.625 inches across, weighing 4.6 pounds - so a focal length that would need a five-foot refractor fits under one arm.\u003c\/p\u003e\n\u003cp\u003eThis listing is the optical tube assembly. It is not the Skymax 102 AZ-GTi, which is the same optics sold as a bundle with Sky-Watcher's motorised AZ-GTi mount and tripod. What ships here is the tube with its visual accessories and a V-style dovetail plate; the mount and tripod are chosen separately, which is what most buyers want when they already own an AZ mount, a photo tripod head, or a small equatorial.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if the Moon, the planets and double stars are what you want to look at, and you want an instrument that lives in a shoulder bag rather than a corner of the garage. The 1300 mm focal length is roughly five to seven times longer than a typical small Newtonian or refractor, so useful planetary magnification arrives with ordinary eyepieces instead of a Barlow stack.\u003c\/p\u003e\n\u003cp\u003eIt also suits anyone already carrying a mount. If you own an AZ-GTi, a Star Adventurer with a counterweight, an AZ5, or a sturdy photo tripod with a V-style saddle, the 4.6 pound tube slots straight in and you have a long-focal-length scope without buying another mount.\u003c\/p\u003e\n\u003cp\u003eTravellers and balcony observers get the most out of it: the sealed tube means no collimation ritual before a session and no open tube to catch wind.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e102 mm Maksutov-Cassegrain at 1300 mm f\/12.7:\u003c\/strong\u003e long focal length in a 12.25 inch tube, which is where the contrast on planetary detail comes from.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBorosilicate mirrors with Radiant Aluminum Quartz (RAQ) coatings:\u003c\/strong\u003e Sky-Watcher publishes 94% reflectivity for these coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-aperture meniscus corrector with MHTC coating:\u003c\/strong\u003e the corrector plate at the front seals the tube and carries Sky-Watcher's Metallic High-Transmission Coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal primary mirror focus:\u003c\/strong\u003e focusing moves the primary mirror inside the sealed tube, so nothing protrudes and the focuser cannot sag under an eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed optical tube:\u003c\/strong\u003e the closed design keeps dust off the mirrors and holds collimation, so there is nothing to align before observing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-style dovetail plate fitted:\u003c\/strong\u003e mates directly with Vixen-style saddles, which covers the large majority of small alt-azimuth and equatorial mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded per Sky-Watcher's product page:\u003c\/strong\u003e two 1.25-inch eyepieces, red dot finder, 1.25-inch star diagonal, V-style dovetail and a soft carrying case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlossy black diamond metal-flake finish\u003c\/strong\u003e on the aluminium tube.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA Maksutov-Cassegrain starts with a thick, full-aperture meniscus lens - the corrector plate - at the front of the tube. Light passes through it to a borosilicate primary mirror at the back, reflects forward to a secondary spot aluminised directly onto the inner face of the corrector, and then back out through a hole in the primary to the eyepiece. Folding the path that way is how 1300 mm of focal length fits inside a 12.25 inch tube.\u003c\/p\u003e\n\u003cp\u003eThe optical consequence is the reason people buy Maksutovs. Sky-Watcher describes the design as generally regarded as producing a sharper image than a Schmidt-Cassegrain, and the mechanism is the meniscus itself: it is a spherical, easily figured element, and the secondary is a coating on its back surface rather than a separately mounted mirror, so there is no secondary support structure and no diffraction spikes. The corrector also reduces chromatic aberration and, being full aperture, seals the tube against dust and tube currents.\u003c\/p\u003e\n\u003cp\u003eFocusing works by moving the primary mirror along the optical axis inside the tube. There is no external drawtube to flex and no focuser to rebalance, and back focus is effectively adjustable across a wide range - which is what makes the tube tolerant of diagonals, extension tubes and cameras of different depths.\u003c\/p\u003e\n\u003cp\u003eThe f\/12.7 focal ratio is the trade. A long, slow cone delivers high contrast and a well-corrected central field at high power, and it means the exit pupil at any given eyepiece is small - excellent on the Moon and planets, less suited to sweeping large faint nebulae.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar observing:\u003c\/strong\u003e 1300 mm puts crater walls and rille detail at high scale with a mid-focal-length eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary observing:\u003c\/strong\u003e the unobstructed-looking contrast of a small central obstruction on Jupiter's belts, Saturn's rings and Mars at opposition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble stars:\u003c\/strong\u003e long focal length and a sealed, stable tube make close pairs a natural target.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar and planetary imaging:\u003c\/strong\u003e a planetary camera at native focal length gives a large image scale straight out of the visual back.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerrestrial and daytime spotting\u003c\/strong\u003e with an erecting diagonal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel and grab-and-go:\u003c\/strong\u003e 4.6 pounds of tube, a soft case, and no setup ritual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe tube arrives on a V-style (Vixen-format) dovetail plate. That is the saddle standard on the AZ-GTi, AZ5, Star Adventurer GTi, EQM-35 and most small equatorial heads, so mounting is a matter of dropping it in and tightening the clamp. At 4.6 pounds it is well inside the payload of any of those.\u003c\/p\u003e\n\u003cp\u003eThe visual train is 1.25-inch: the supplied star diagonal and both eyepieces are 1.25-inch, and any 1.25-inch eyepiece, filter or camera nosepiece works directly. Because focusing moves the primary mirror rather than a drawtube, the tube reaches focus with a wide variety of accessory depths - a binoviewer, a longer diagonal, or a camera with a T-adapter will all come to focus without spacers in most cases.\u003c\/p\u003e\n\u003cp\u003eFor imaging, a standard 1.25-inch nosepiece planetary camera drops into the diagonal or straight into the visual back. If you are planning a specific camera or a T-thread connection, send us the model and we will confirm the adapter you need.\u003c\/p\u003e\n\u003cp\u003eIf you want this scope with a mount and tripod as one package, the Skymax 102 AZ-GTi bundle is the version to look at, and we stock it separately.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis is the optical tube assembly, not a complete telescope package.\u003c\/strong\u003e Eyepieces, diagonal, finder, dovetail and soft case are included; no mount and no tripod. The Skymax 102 AZ-GTi bundle is the mounted version, sold as its own product.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal ratio is f\/12.7.\u003c\/strong\u003e That is a long, slow cone - excellent for the Moon, planets and double stars, and a narrow field for large deep-sky objects. A 1.25-inch eyepiece at 1300 mm gives roughly a one-degree field at the low end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSky-Watcher publishes tube weight as 4.6 pounds.\u003c\/strong\u003e Shipping weight is higher once the case and accessories are boxed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe finder specification differs between Sky-Watcher's two publications.\u003c\/strong\u003e Their product page lists a red dot finder for the Skymax 102; their Skymax Series product sheet lists a 6x30 straight-through finder. We confirm which finder is in the carton before shipping, and will tell you which one your unit has if you ask.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaksutovs need cooldown.\u003c\/strong\u003e The sealed tube and thick corrector reach ambient temperature more slowly than an open tube; the sharpest planetary views come after the optics have settled outdoors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping applies to this item\u003c\/strong\u003e per Sky-Watcher's listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is about as simple as a telescope gets. The tube is sealed and collimated at the factory, so there is no mirror alignment to perform - now or later. Setup is: slide the dovetail into your mount's saddle, tighten the clamp, drop the diagonal and an eyepiece into the back, and aim with the finder. At 4.6 pounds the whole thing goes up one-handed. The only thing that takes patience is cooldown, and that happens while you are setting up the rest.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is this different from the Skymax 102 AZ-GTi we also sell?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSame optical tube. The AZ-GTi version adds Sky-Watcher's motorised, app-controlled AZ-GTi mount head and a tripod. This listing is the tube on its own, for people who already have a mount.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mount does it need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnything with a Vixen-style (V-format) saddle rated for 4.6 pounds plus eyepiece - an AZ-GTi, AZ5, Star Adventurer GTi with counterweight, or a small equatorial all work. Tell us what you own and we will confirm the fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I photograph with it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLunar and planetary imaging works well at 1300 mm with a planetary camera. The f\/12.7 ratio makes long-exposure deep-sky imaging a slow proposition, so it is not the tube people choose for nebulae and galaxies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy a Maksutov instead of a Schmidt-Cassegrain of similar size?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSky-Watcher's position is that Maksutovs generally produce a sharper image. The design has a smaller central obstruction and a secondary mirror coated onto the corrector rather than mounted on a spider, which lifts contrast on planetary detail.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA sealed 102 mm Maksutov-Cassegrain optical tube that delivers 1300 mm of focal length in a 12.25 inch, 4.6 pound package, supplied with two 1.25-inch eyepieces, a diagonal, a finder, a V-style dovetail and a soft case. It is the tube-only version of the Skymax 102 - pair it with a mount you already own, or ask us and we will match one to it.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":53896781856879,"sku":"S11510","price":490.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/RS1333_S11510_Skymax102_OTAOnly_LeftFront_NoBackground-scr.jpg?v=1785253935"},{"product_id":"sky-watcher-skymax-127-maksutov-cassegrain-ota","title":"Sky-Watcher Skymax 127 Maksutov-Cassegrain OTA","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Skymax 127 is a 127 mm Maksutov-Cassegrain optical tube working at 1540 mm of focal length and f\/12.1. The folded Maksutov path puts that focal length into a tube 15 inches long and 5.75 inches across, weighing 9.7 pounds - roughly a five-inch aperture with the reach of a scope three times its length.\u003c\/p\u003e\n\u003cp\u003eThis listing is the optical tube assembly. It is not the Skymax 127 AZ-GTi, which is the same optics sold as a bundle with Sky-Watcher's motorised AZ-GTi mount and tripod. Here you get the tube, a 2-inch visual train and a V-style dovetail plate; the mount and tripod are separate choices - which is the point for buyers who already own a mount and want the optics on their own terms.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you have outgrown a small refractor on planetary detail and want more aperture without moving to a long tube or an open Newtonian. The step from 102 mm to 127 mm is a 55% increase in collecting area, and at 1540 mm the image scale on Jupiter, Saturn and lunar features is noticeably larger.\u003c\/p\u003e\n\u003cp\u003eIt also fits observers who want a 2-inch visual train. Unlike the 102, the Skymax 127 ships with a 2-inch star diagonal and a 2-inch 28 mm eyepiece, so wide-field eyepieces work at their full field stop and the low-power end of the range opens up considerably for a scope of this focal length.\u003c\/p\u003e\n\u003cp\u003eIf you own a mount in the AZ-GTi, AZ5, EQM-35 or HEQ5 class, the 9.7 pound tube is a comfortable load and this is a straightforward way to add long focal length to a kit you already have.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e127 mm Maksutov-Cassegrain at 1540 mm f\/12.1:\u003c\/strong\u003e long focal length folded into a 15 inch tube, which is where the planetary contrast comes from.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBorosilicate mirrors with Radiant Aluminum Quartz (RAQ) coatings:\u003c\/strong\u003e Sky-Watcher publishes 94% reflectivity for these coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-aperture meniscus corrector with MHTC coating:\u003c\/strong\u003e the corrector seals the tube and carries Sky-Watcher's Metallic High-Transmission Coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch visual train:\u003c\/strong\u003e supplied with a 2-inch star diagonal and a 2-inch 28 mm eyepiece, so 2-inch wide-field eyepieces reach their full field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed optical tube:\u003c\/strong\u003e the closed design holds collimation and keeps dust off the mirrors, so there is nothing to align before observing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-style dovetail plate fitted:\u003c\/strong\u003e mates directly with Vixen-style saddles across small alt-azimuth and equatorial mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded per Sky-Watcher's product page:\u003c\/strong\u003e a 2-inch 28 mm eyepiece, a finderscope, a V-style dovetail and a 2-inch diagonal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlossy black diamond metal-flake finish\u003c\/strong\u003e on the aluminium tube.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA Maksutov-Cassegrain begins with a thick, full-aperture meniscus lens at the front of the tube. Light passes through it to a borosilicate primary at the back, reflects forward to a secondary spot aluminised directly onto the inner face of the meniscus, and returns through a central hole in the primary to the eyepiece. That three-bounce fold is how 1540 mm of focal length lives inside a 15 inch tube.\u003c\/p\u003e\n\u003cp\u003eThe design's advantage on planets follows from its geometry. The secondary is a coating on the corrector rather than a mirror on a spider, so there is no support structure in the light path and no diffraction spikes; the central obstruction is small relative to a Schmidt-Cassegrain of similar aperture. Sky-Watcher describes Maksutovs as generally regarded as producing a sharper image than Schmidt-Cassegrains, and this is the mechanism behind that. The meniscus is also spherical and therefore easier to figure accurately than an aspheric corrector, and being full aperture it seals the tube against dust and internal air currents.\u003c\/p\u003e\n\u003cp\u003eThe Skymax Series product sheet lists a 2-inch dual-speed Crayford-style focuser with a 1.25 inch adapter for the 127 mm column, giving fine control at the magnifications this focal length reaches.\u003c\/p\u003e\n\u003cp\u003eAt f\/12.1 the cone is long and slow. That produces high contrast and a well-corrected central field at high power, with a correspondingly narrow field of view - the reason this is a Moon, planets and double stars instrument rather than a wide-field one.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary observing:\u003c\/strong\u003e 127 mm of aperture at 1540 mm resolves belt structure on Jupiter, the Cassini division on Saturn and surface albedo on Mars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar observing:\u003c\/strong\u003e high image scale on crater floors, rilles and the terminator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble stars:\u003c\/strong\u003e a sealed, thermally stable tube and long focal length suit close pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar and planetary imaging:\u003c\/strong\u003e a planetary camera at native focal length gives large image scale without a Barlow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobular clusters and planetary nebulae:\u003c\/strong\u003e the extra aperture over the 102 puts these within comfortable reach at moderate power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerrestrial and long-range spotting\u003c\/strong\u003e with an erecting diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe tube is supplied on a V-style (Vixen-format) dovetail plate, which is the saddle standard on the AZ-GTi, AZ5, Star Adventurer GTi, EQM-35 and HEQ5 heads. At 9.7 pounds it sits comfortably within the payload of any of those with room for a diagonal and eyepiece on top.\u003c\/p\u003e\n\u003cp\u003eThe visual train is 2-inch, and the supplied diagonal accepts 2-inch eyepieces directly. A 1.25 inch adapter is listed with the focuser, so the existing 1.25-inch eyepieces and filters in your case work without buying anything.\u003c\/p\u003e\n\u003cp\u003eFor imaging, a planetary camera goes into the diagonal or straight into the visual back. Because focus is achieved inside the tube rather than through a limited drawtube travel, the scope tolerates accessories of varying optical depth without spacer arithmetic. If you have a specific camera or a T-thread connection in mind, send us the model and we will confirm the adapter.\u003c\/p\u003e\n\u003cp\u003eIf you would rather have this scope with a mount and tripod as one package, the Skymax 127 AZ-GTi bundle is the version to look at, and we stock it separately.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis is the optical tube assembly, not a complete telescope package.\u003c\/strong\u003e The eyepiece, diagonal, finder and dovetail are included; no mount and no tripod. The Skymax 127 AZ-GTi bundle is the mounted version, sold as its own product.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal ratio is f\/12.1.\u003c\/strong\u003e Long and slow: excellent contrast at high power, a narrow field for large deep-sky objects, and a slow proposition for long-exposure deep-sky imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSky-Watcher publishes tube weight as 9.7 pounds.\u003c\/strong\u003e Shipping weight is higher once accessories and packaging are added.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe finder specification differs between Sky-Watcher's two publications.\u003c\/strong\u003e Their product page lists a 6x30 finderscope for the Skymax 127; their Skymax Series product sheet lists a 9x50 straight-through finder for the 127mm column. We confirm which finder is in the carton before shipping, and will tell you which one your unit has if you ask.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaksutovs need cooldown.\u003c\/strong\u003e The sealed tube and thick corrector equalise with ambient temperature more slowly than an open tube, and at 127 mm that takes longer than it does on the 102. The sharpest views come once the optics have settled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo carrying case is listed for this model\u003c\/strong\u003e in Sky-Watcher's published accessory list, unlike the Skymax 102.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping applies to this item\u003c\/strong\u003e per Sky-Watcher's listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The tube is sealed and collimated at the factory, so there is no mirror alignment to perform when it arrives or later. Setup is: dovetail into the mount saddle, clamp, diagonal and eyepiece into the back, aim with the finder. At 9.7 pounds it is a comfortable one-handed lift onto a saddle. Cooldown is the only part that takes time, and it runs while you set up everything else.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is this different from the Skymax 127 AZ-GTi we also sell?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSame optical tube. The AZ-GTi version adds Sky-Watcher's motorised, app-controlled AZ-GTi mount head and a tripod. This listing is the tube alone, for people who already have a mount.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the step up from the Skymax 102 worth it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e127 mm gathers about 55% more light than 102 mm, and the focal length goes from 1300 mm to 1540 mm. The other real difference is the visual train: the 127 comes with a 2-inch diagonal and a 2-inch 28 mm eyepiece where the 102 is 1.25-inch throughout. The trade is weight - 9.7 pounds against 4.6.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mount does it need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnything with a Vixen-style saddle carrying 9.7 pounds plus accessories - AZ-GTi, AZ5, EQM-35, HEQ5 and similar. Tell us what you own and we will confirm the fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I photograph with it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLunar and planetary imaging works well at 1540 mm with a planetary camera. At f\/12.1 long-exposure deep-sky imaging is slow, so this is not the tube people choose for nebulae and galaxies.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA sealed 127 mm Maksutov-Cassegrain optical tube delivering 1540 mm of focal length in a 15 inch, 9.7 pound package, supplied with a 2-inch star diagonal, a 2-inch 28 mm eyepiece, a finderscope and a V-style dovetail. It is the tube-only version of the Skymax 127 - pair it with a mount you already own, or send us your setup and we will match one to it.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":53896788574319,"sku":"S11520","price":850.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/RS1357_S11520_Skymax127_OTAOnly_LeftFront_NoBackground-scr.jpg?v=1785254027"},{"product_id":"sky-watcher-skymax-150-maksutov-cassegrain-ota","title":"Sky-Watcher Skymax 150 Maksutov-Cassegrain OTA","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Skymax 150 is the largest Maksutov-Cassegrain in Sky-Watcher's mainstream Skymax line: 150 mm of aperture at 1800 mm focal length and f\/12. The folded optical path puts that focal length into a tube 17.5 inches long and 7.5 inches across, weighing 14 pounds - a six-inch planetary instrument roughly the size of a carry-on.\u003c\/p\u003e\n\u003cp\u003eThis listing is the optical tube assembly. Sky-Watcher does not build an AZ-GTi bundle at this aperture, so unlike the Skymax 102 and 127 there is no mounted package version of this scope; the tube is supplied with its 2-inch visual train and V-style dovetail with mounting rings, and the mount is your choice.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if planetary and lunar detail is the priority and you want the most resolution a sealed, collimation-free tube can give you. Six inches of aperture and 1800 mm of native focal length put a planetary camera at a large image scale without a Barlow in the train - which is exactly the combination high-resolution planetary imagers look for.\u003c\/p\u003e\n\u003cp\u003eIt also suits observers building around one serious visual scope. The 2-inch diagonal and 28 mm eyepiece give a usable low-power view for a scope of this focal length, while the aperture puts globular clusters, planetary nebulae and the brighter galaxies within comfortable reach.\u003c\/p\u003e\n\u003cp\u003eBecause it arrives with mounting rings rather than a bare dovetail foot, the tube can be rotated in the rings to index the focuser and finder to a comfortable position - useful on an equatorial mount where the eyepiece angle changes across the sky.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 mm Maksutov-Cassegrain at 1800 mm f\/12:\u003c\/strong\u003e six inches of aperture and long native focal length in a 17.5 inch tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBorosilicate mirrors with Radiant Aluminum Quartz (RAQ) coatings:\u003c\/strong\u003e Sky-Watcher publishes 94% reflectivity for these coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-aperture meniscus corrector with MHTC coating:\u003c\/strong\u003e a 150 mm meniscus seals the tube and carries Sky-Watcher's Metallic High-Transmission Coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch visual train:\u003c\/strong\u003e supplied with a 2-inch star diagonal and a 2-inch 28 mm eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-style dovetail with mounting rings:\u003c\/strong\u003e the rings let the tube rotate to index the focuser and finder, and spread the load across the tube rather than a single foot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed optical tube:\u003c\/strong\u003e the closed design holds collimation and keeps dust off the mirrors, so there is nothing to align before observing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded per Sky-Watcher's product page:\u003c\/strong\u003e a 2-inch 28 mm eyepiece, a finderscope, a V-style dovetail and a 2-inch diagonal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlossy black diamond metal-flake finish\u003c\/strong\u003e on the aluminium tube.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA Maksutov-Cassegrain opens with a thick, full-aperture meniscus lens. Light passes through it to a borosilicate primary mirror at the rear, reflects forward to a secondary spot aluminised directly onto the inner face of the meniscus, and comes back through a central hole in the primary to the eyepiece. That fold is what compresses 1800 mm of focal length into a 17.5 inch tube.\u003c\/p\u003e\n\u003cp\u003eThe planetary performance follows from the geometry. The secondary is a coating on the corrector, not a mirror on a spider, so there is no support structure in the light path and no diffraction spikes - and the obstruction is small relative to a Schmidt-Cassegrain of comparable aperture. Sky-Watcher describes Maksutovs as generally regarded as producing a sharper image than Schmidt-Cassegrains, and this is the reason. The meniscus is spherical and therefore easier to figure to a high standard than an aspheric corrector, and being full aperture it seals the tube against dust and internal air currents.\u003c\/p\u003e\n\u003cp\u003eThe Skymax Series product sheet lists a 2-inch dual-speed Crayford-style focuser with a 1.25 inch adapter for the 150 mm column. Dual-speed control matters here: at 1800 mm and f\/12, critical focus on a planetary target is a small window, and a fine ratio makes it findable without nudging the tube.\u003c\/p\u003e\n\u003cp\u003eAt f\/12, the cone is long and slow - high contrast and a well-corrected central field at high power, with a narrow field of view. This is a resolution instrument, not a wide-field one.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-resolution planetary observing:\u003c\/strong\u003e 150 mm at 1800 mm on Jupiter's festoons, Saturn's ring divisions and Martian surface markings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar observing:\u003c\/strong\u003e six inches of aperture resolving rilles, domes and crater terracing at high image scale.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary and lunar imaging:\u003c\/strong\u003e native 1800 mm suits a planetary camera directly, with no amplification needed for most sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble stars:\u003c\/strong\u003e the aperture and the sealed, thermally stable tube suit close and unequal pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobular clusters and planetary nebulae:\u003c\/strong\u003e the aperture resolves cluster cores and shows structure in the brighter planetaries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-range terrestrial observing\u003c\/strong\u003e with an erecting diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe tube ships with mounting rings on a V-style (Vixen-format) dovetail. That fits the standard saddle on the EQM-35, HEQ5, AZ-EQ5 and larger heads. At 14 pounds before the diagonal and eyepiece, an HEQ5-class equatorial or an AZ-EQ5 is the usual pairing for tracked planetary work; tell us what you are mounting on and we will confirm the headroom.\u003c\/p\u003e\n\u003cp\u003eThe visual train is 2-inch, and the supplied diagonal takes 2-inch eyepieces directly. A 1.25 inch adapter is listed with the focuser, so 1.25-inch eyepieces and filters already in your case work without buying anything.\u003c\/p\u003e\n\u003cp\u003eFor imaging, a planetary camera goes into the diagonal or straight into the visual back, and the wide range of achievable focus positions means accessories of different optical depths generally come to focus without spacer arithmetic. Send us the camera model and we will confirm the adapter chain.\u003c\/p\u003e\n\u003cp\u003eUnlike the Skymax 102 and 127, there is no Skymax 150 AZ-GTi package - the 14 pound tube is beyond what that mount is intended to carry. If you want this scope on a goto mount, ask us and we will put together a pairing that carries it properly.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis is the optical tube assembly.\u003c\/strong\u003e The eyepiece, diagonal, finder, mounting rings and dovetail are included; no mount and no tripod. There is no AZ-GTi bundle version of the 150.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube weight is 14 pounds.\u003c\/strong\u003e With a 2-inch diagonal and eyepiece the mounted load is higher, which is worth accounting for against your mount's rating and counterweight set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal ratio is f\/12.\u003c\/strong\u003e Long and slow: excellent contrast at high power, a narrow field, and a slow proposition for long-exposure deep-sky imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe finder specification differs between Sky-Watcher's two publications.\u003c\/strong\u003e Their product page text reads '98x50 finderscope', which is a typographical error for a 9x50; their Skymax Series product sheet lists an 8x50 right-angle finder for the 150mm column. We confirm which finder is in the carton before shipping, and will tell you which one your unit has if you ask.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooldown is a real factor at this aperture.\u003c\/strong\u003e A 150 mm meniscus and a sealed tube equalise with ambient temperature slowly - the sharpest planetary views come after the optics have settled outdoors, and a small rear-cell fan is a common owner addition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo carrying case is listed for this model\u003c\/strong\u003e in Sky-Watcher's published accessory list.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping applies to this item\u003c\/strong\u003e per Sky-Watcher's listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe optics arrive sealed and collimated, so there is no mirror alignment to perform now or later - which removes the step that makes a six-inch Newtonian or Schmidt-Cassegrain more work. Setup is: dovetail into the saddle, clamp, diagonal and eyepiece into the back, balance, aim. The one thing that takes handling is the 14 pound tube going onto the mount, and the mounting rings give you two places to hold it. Cooldown runs in the background while you set up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a Skymax 150 AZ-GTi version?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. Sky-Watcher builds AZ-GTi bundles around the Skymax 102 and 127; the 150 is sold as an optical tube only. We can recommend a mount that carries it - send us a note about how you will use it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does it compare to the Skymax 127?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e150 mm gathers about 40% more light than 127 mm and resolves finer detail, and the focal length goes from 1540 mm to 1800 mm. It also ships with mounting rings rather than a plain dovetail foot. The trade is weight: 14 pounds against 9.7, which usually means a larger mount.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I photograph with it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is well suited to lunar and planetary imaging at 1800 mm with a planetary camera. At f\/12 long-exposure deep-sky imaging is slow, so this is not the tube people choose for nebulae and galaxies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need 2-inch eyepieces?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. A 2-inch 28 mm eyepiece and 2-inch diagonal are supplied, and the focuser is listed with a 1.25 inch adapter, so 1.25-inch eyepieces you already own work directly.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA sealed 150 mm Maksutov-Cassegrain optical tube delivering 1800 mm of focal length in a 17.5 inch, 14 pound package, supplied with a 2-inch star diagonal, a 2-inch 28 mm eyepiece, a finderscope, and mounting rings on a V-style dovetail. It is the largest Skymax sold as a tube, and it is built for resolution on the Moon and planets. Send us the mount you have in mind and we will confirm the pairing.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":53896793161839,"sku":"S11530","price":1360.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/RS1810_S11530_Skymax150_OTAOnly_LeftFront_NoBackground-scr.jpg?v=1785254130"}],"url":"https:\/\/ontariotelescope.com\/collections\/skywatcher-skymax.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}