{"product_id":"svbony-mk105-maksutov-cassegrain-telescope-ota","title":"SVBONY MK105 105mm f\/13 Maksutov-Cassegrain Telescope OTA","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6387089241209905184417538.jpg?v=1791670973\" alt=\"SVBONY MK105 105mm Maksutov-Cassegrain telescope OTA key visual\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY MK105 is a compact 105 mm Maksutov-Cassegrain optical tube with a 1365 mm focal length at f\/13. A convex meniscus corrector and multi-coated precision aluminium primary fold that long focal length into a tube 377 mm long and 119 mm in diameter, weighing 2193 g (4.83 lb). Focus is internal, the rear accepts 1.25″ accessories and has an M42 x 0.75 thread for a T-ring, and the tube carries two finder bases and a 160 mm dovetail. SVBONY lists 1.1 arc-second resolution, limiting magnitude 12.1 and 210x as the upper magnification figure.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6384065274949411498286311.webp?v=1791670973\" alt=\"SVBONY MK105 105mm aperture 1365mm focal length panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eObserve the Moon, planets and double stars:\u003c\/strong\u003e 1365 mm of focal length gives high magnification with ordinary eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel or want a grab-and-go scope:\u003c\/strong\u003e at 2193 g and under 38 cm long, SVBONY designs it as a carry-on telescope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWant to start planetary imaging:\u003c\/strong\u003e the long native focal length suits small-pixel planetary cameras.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt suits a first telescope for the Moon and planets as well as a compact second scope for an experienced observer.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e105 mm aperture, f\/13:\u003c\/strong\u003e 1365 mm focal length in a 377 mm tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal construction:\u003c\/strong\u003e SVBONY uses a metal mirror structure to keep the optics stable through bumps in transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo routine collimation:\u003c\/strong\u003e the closed Maksutov design holds alignment, and SVBONY notes the meniscus layout reduces obstruction for contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual dovetail finder bases:\u003c\/strong\u003e one integrated and one external, so two finders fit without drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25″ interface:\u003c\/strong\u003e connects directly to star diagonals, eyepieces and cameras; the M42 x 0.75 thread takes a T-ring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e160 mm dovetail plate:\u003c\/strong\u003e standard 75° profile for equatorial mounts and tripods.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6384065279873230002716975.webp?v=1791670973\" alt=\"SVBONY MK105 dual dovetail finder bases\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6387089249463517499313373.jpg?v=1791670973\" alt=\"SVBONY MK105 1.25 inch rear interface for diagonals eyepieces and cameras\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385872424504485035771347.jpg?v=1791670973\" alt=\"SVBONY MK105 160mm 75-degree dovetail plate\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eLight passes through the full-aperture meniscus corrector, reflects from the aluminised primary, and is returned through a central hole in the primary by the secondary. Because the image is formed by mirrors, all colours come to the same focus, so the lunar limb and bright planets are free of the colour fringing of an achromatic refractor. The f\/13 ratio gives a high image scale for planetary detail and splitting close double stars, and the internal focuser moves the primary to reach focus without an external drawtube.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar and planetary observing:\u003c\/strong\u003e SVBONY positions the MK105 for the Moon and planets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary and lunar imaging:\u003c\/strong\u003e with a planetary camera on the 1.25″ interface or a T-ring on the M42 thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble stars and bright clusters\u003c\/strong\u003e at high power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel and backyard sessions:\u003c\/strong\u003e a compact closed tube that is ready to use quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6384065285183196018744945.webp?v=1791670973\" alt=\"SVBONY MK105 Moon and planet observation targets\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear interface:\u003c\/strong\u003e 1.25″ for diagonals and eyepieces, plus an M42 x 0.75 thread for a T-ring. A camera adapter is sold separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 160 mm, 75° dovetail plate on two mounting bases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinders:\u003c\/strong\u003e two finder bases, one integrated and one external.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic focusing:\u003c\/strong\u003e SVBONY notes the MK105 is compatible with the ZWO EAF.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual accessories:\u003c\/strong\u003e a 1.25″ star diagonal and eyepieces are needed for visual use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eSVBONY shows the MK105 package contents in the graphic below. This listing is the optical tube; no mount, tripod, diagonal or eyepiece is listed for it.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6384065286345487702430305.webp?v=1791670973\" alt=\"SVBONY MK105 package contents\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical tube only:\u003c\/strong\u003e add a mount, a 1.25″ diagonal and eyepieces or a camera to complete it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrow field:\u003c\/strong\u003e at f\/13 the field of view suits planets, the Moon and small objects rather than wide star fields.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCool-down:\u003c\/strong\u003e as with any closed-tube Maksutov, the sharpest views come once the optics reach outdoor temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDew:\u003c\/strong\u003e the front corrector faces the sky, and a dew heater keeps it clear on humid nights.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. Drop the dovetail into your mount's saddle, add a 1.25″ diagonal and eyepiece, and focus with the rear knob. There is no routine collimation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the outer diameter of the tube?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e119 mm, the figure to use when choosing a dew heater strip.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it for photography?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. Attach a planetary camera at the 1.25″ interface or a camera body with a T-ring on the M42 x 0.75 thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it work with an electronic focuser?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSVBONY states the MK105 is compatible with the ZWO EAF.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow heavy is it?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e2193 g (4.83 lb) for the tube.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 105 mm, 1365 mm f\/13 Maksutov-Cassegrain tube weighing 2193 g, with internal focusing, a 1.25″ and M42 rear and a 160 mm dovetail — built for the Moon, planets and travel. Add a mount, diagonal and eyepiece or camera to complete it.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67722425696367,"sku":"F9382A","price":327.75,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9382a-0_20251231165322_4203.webp?v=1791671064","url":"https:\/\/ontariotelescope.com\/products\/svbony-mk105-maksutov-cassegrain-telescope-ota","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}