{"title":"P Series","description":"","products":[{"product_id":"askar-50p-50mm-f-3-8-quadruplet-apo-astrograph","title":"Askar 50P 50mm f\/3.8 Quadruplet APO Astrograph","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Askar 50P is a compact 50mm f\/3.8 quadruplet Petzval APO astrograph designed for portable wide-field deep-sky imaging. With a 190mm focal length, SD glass in the objective design, and an M48 rear camera connection, it is built for travel-friendly astrophotography rigs, lightweight mounts, and modern CMOS cameras.\u003c\/p\u003e\n\u003cp\u003eThis telescope is optimized for 1-inch sensors and supports APS-C format use, making it a practical option for nebulae, large star fields, Milky Way regions, comet imaging, and other wide-field targets where speed and portability matter.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThe 50P is best for beginner-to-intermediate astrophotographers who want a simple, portable imaging telescope, as well as advanced users looking for a lightweight grab-and-go wide-field astrograph. It is especially suitable for users with small cooled cameras, mirrorless camera adapters, or one-shot colour astronomy cameras.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFast f\/3.8 optical system for efficient deep-sky imaging.\u003c\/li\u003e\n  \u003cli\u003eQuadruplet Petzval APO design helps simplify field correction compared with traditional doublets or triplets.\u003c\/li\u003e\n  \u003cli\u003e50mm aperture and 190mm focal length make it excellent for large nebulae and wide star fields.\u003c\/li\u003e\n  \u003cli\u003eCompact 147mm contracted tube length for portable and travel imaging setups.\u003c\/li\u003e\n  \u003cli\u003eM48 rear connection with M48×0.75 filter thread for common astronomy camera accessories.\u003c\/li\u003e\n  \u003cli\u003eRecommended 55mm camera connection length with support for 50–65mm connection range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWide-field deep-sky astrophotography\u003c\/li\u003e\n  \u003cli\u003eNebula and Milky Way region imaging\u003c\/li\u003e\n  \u003cli\u003ePortable tracking-mount imaging rigs\u003c\/li\u003e\n  \u003cli\u003eOne-shot colour CMOS camera setups\u003c\/li\u003e\n  \u003cli\u003eTravel astrophotography with lightweight mounts\u003c\/li\u003e\n  \u003cli\u003eLarge-target imaging where a short focal length is preferred\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cp\u003eThe 50P uses an M48 rear adapter with an M48×0.75 filter thread. It supports a rear-end connection distance from 50mm to 65mm, with 55mm recommended for typical imaging setups. The telescope is optimized for 1-inch sensors and supports APS-C format use. The standard package includes the 50P OTA and manual.\u003c\/p\u003e\n\u003cp\u003eFor autofocus, the separate Askar 50P AF Kit can be used with compatible electronic focusers. Camera adapters, filters, spacers, and electronic focusers are sold separately unless specifically included in a bundle.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eThis is primarily an imaging astrograph, not a general-purpose visual observing telescope.\u003c\/li\u003e\n  \u003cli\u003eCamera spacing still matters; the recommended connection length is 55mm.\u003c\/li\u003e\n  \u003cli\u003eLarge full-frame sensors are not the ideal match; the vendor specifies APS-C format support and optimization for 1-inch sensors.\u003c\/li\u003e\n  \u003cli\u003eA suitable tracking mount, camera, power, control hardware, and imaging accessories are required for astrophotography.\u003c\/li\u003e\n  \u003cli\u003eThe electronic focuser kit is not included with the standard 50P OTA package.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs the Askar 50P good for beginners?\u003c\/h3\u003e\n\u003cp\u003eYes, it can be a strong beginner astrophotography telescope because the short focal length is forgiving and the fast f\/3.8 focal ratio helps collect signal quickly. Beginners will still need a suitable mount, camera, and basic spacing setup.\u003c\/p\u003e\n\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\n\u003cp\u003eIt is best used for wide-field deep-sky astrophotography, especially large nebulae, star fields, comet imaging, and portable imaging rigs.\u003c\/p\u003e\n\u003ch3\u003eIs it for visual observing or astrophotography?\u003c\/h3\u003e\n\u003cp\u003eIt is primarily recommended for astrophotography. Visual observing may require additional adapters and is not the main reason to choose this telescope.\u003c\/p\u003e\n\u003ch3\u003eWhat cameras work well with it?\u003c\/h3\u003e\n\u003cp\u003eSmall and medium astronomy cameras are the best match. The vendor lists APS-C format support and notes that the design is optimized for 1-inch sensors.\u003c\/p\u003e\n\u003ch3\u003eDoes it require additional accessories?\u003c\/h3\u003e\n\u003cp\u003eMost imaging setups will require a camera, mount, power\/control system, adapters or spacers, and possibly filters. Autofocus requires the separate 50P AF Kit and a compatible electronic focuser.\u003c\/p\u003e\n\u003ch3\u003eWhen should it not be recommended?\u003c\/h3\u003e\n\u003cp\u003eDo not choose it as a primary visual telescope, for high-magnification planetary imaging, or when a longer focal length is required for small galaxies or compact targets.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eOntario Telescope recommends the Askar 50P for customers who want a compact, fast, and easy-to-carry wide-field astrograph. It solves the problem of building a portable imaging system without moving to a large telescope and heavy mount. Choose a longer focal length telescope instead if your main targets are planets, small galaxies, or tight detail in compact objects.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following vendor-supplied diagrams help show the 50P mechanical layout, camera connection path, focuser accessory arrangement, optical path, and spot performance.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4b592863-0c9e-40b2-af5a-7881ceb98918.jpg\" alt=\"Askar 50P product size diagram for compact wide-field astrograph setup\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/53750a02-65d0-40b3-b979-f8990189ba27.jpg\" alt=\"Askar 50P camera connection diagram with M48 imaging adapter\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/262df748-2627-46dc-8157-bc61908350ef.jpg\" alt=\"Askar 50P electronic focuser assembly diagram for autofocus setup\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ca61e887-1787-4d3d-8a49-01b8b40f5768.jpg\" alt=\"Askar 50P optical path diagram for astrophotography configuration\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/55962810-f3d9-403c-b203-4601f589f04a.jpg\" alt=\"Askar 50P spot diagram for wide-field astrophotography performance\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155932438639,"sku":"50P","price":418.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/50p1.webp?v=1779737209"},{"product_id":"askar-50p-af-kit-for-electronic-focusers","title":"Askar 50P AF Kit for Electronic Focusers","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Askar 50P AF Kit is a dedicated autofocus accessory kit designed specifically for the Askar 50P astrograph. It provides the mechanical parts needed to adapt a wide range of mainstream electronic focusers to the 50P, allowing precise motorized focusing for astrophotography and remote imaging workflows.\u003c\/p\u003e\n\u003cp\u003eThis is a mechanical accessory kit, not an electronic focuser by itself. It is intended for customers who already own, or plan to use, a compatible electronic focuser with the Askar 50P.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for intermediate and advanced astrophotographers using the Askar 50P who want to automate focus control. It is also useful for portable imaging setups, unattended imaging sessions, temperature-compensated focusing workflows, and users who want more repeatable focus than manual adjustment can provide.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned specifically for the Askar 50P astrograph.\u003c\/li\u003e\n  \u003cli\u003eAllows the 50P to work with a broad range of mainstream electronic focusers.\u003c\/li\u003e\n  \u003cli\u003eIncludes multiple MXL belts and pulleys to support different focuser installation requirements.\u003c\/li\u003e\n  \u003cli\u003eHelps eliminate manual focusing during astrophotography sessions.\u003c\/li\u003e\n  \u003cli\u003eSupports more precise and repeatable focus control for deep-sky imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAutofocus conversion for the Askar 50P\u003c\/li\u003e\n  \u003cli\u003eDeep-sky astrophotography focusing workflows\u003c\/li\u003e\n  \u003cli\u003eRemote or semi-automated imaging setups\u003c\/li\u003e\n  \u003cli\u003ePortable imaging rigs where repeatable focus is important\u003c\/li\u003e\n  \u003cli\u003eElectronic focuser mounting and belt-drive adaptation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cp\u003eThe 50P AF Kit is designed for the Askar 50P and is intended to be used with mainstream electronic focusers from multiple brands. The vendor notes that it is not restricted to one focuser brand. The kit includes four MXL synchronous belts in different lengths, two MXL synchronous pulleys in different diameters, one adapter bracket, two L-shaped hollow plates, three Allen wrenches, two M4×12mm screws, four M4×10mm screws, and two M3×10mm screws.\u003c\/p\u003e\n\u003cp\u003eThe Askar 50P telescope and any electronic focuser shown in vendor illustrations are not included. An electronic focuser must be purchased separately.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eThis is not a telescope and not an electronic focuser.\u003c\/li\u003e\n  \u003cli\u003eIt is a mechanical adaptation kit for using electronic focusers with the Askar 50P.\u003c\/li\u003e\n  \u003cli\u003eThe 50P OTA is not included.\u003c\/li\u003e\n  \u003cli\u003eElectronic focusers shown in diagrams are not included.\u003c\/li\u003e\n  \u003cli\u003eInstallation may require careful belt and pulley selection based on the focuser being used.\u003c\/li\u003e\n  \u003cli\u003eNot useful unless you own or are purchasing an Askar 50P and a compatible electronic focuser.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this good for beginners?\u003c\/h3\u003e\n\u003cp\u003eIt can be useful for beginners who already understand the basics of astrophotography focusing, but it is mainly recommended for users who are ready to add electronic focusing to their Askar 50P setup.\u003c\/p\u003e\n\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\n\u003cp\u003eIt is best used to mechanically adapt an electronic focuser to the Askar 50P for automated focus control during astrophotography.\u003c\/p\u003e\n\u003ch3\u003eIs this for visual observing, astrophotography, guiding, or camera connection?\u003c\/h3\u003e\n\u003cp\u003eThis is an astrophotography accessory for autofocus installation. It is not for visual observing, guiding, or direct camera connection.\u003c\/p\u003e\n\u003ch3\u003eWhat telescopes is it compatible with?\u003c\/h3\u003e\n\u003cp\u003eIt is designed specifically for the Askar 50P. It should not be assumed to fit other telescopes unless the manufacturer confirms compatibility.\u003c\/p\u003e\n\u003ch3\u003eDoes it include an electronic focuser?\u003c\/h3\u003e\n\u003cp\u003eNo. The kit includes belts, pulleys, brackets, plates, screws, and Allen wrenches. The telescope and electronic focuser are not included.\u003c\/p\u003e\n\u003ch3\u003eWhat makes it different from similar products?\u003c\/h3\u003e\n\u003cp\u003eIt is purpose-built for the mechanical layout of the Askar 50P and includes multiple belt and pulley options to support different focuser installations.\u003c\/p\u003e\n\u003ch3\u003eWhen should it not be recommended?\u003c\/h3\u003e\n\u003cp\u003eDo not recommend this kit to someone who does not own an Askar 50P, does not plan to use an electronic focuser, or is looking for a complete motorized focuser package.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eOntario Telescope recommends the Askar 50P AF Kit for 50P owners who want reliable, repeatable electronic focusing for imaging. It is a practical add-on for deep-sky astrophotographers moving beyond manual focus. Do not choose this kit by itself if you still need the telescope or the electronic focuser.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following vendor-supplied graphics show the AF Kit layout, size diagram, and installation approach for adapting electronic focusers to the Askar 50P.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/78494161-8d5e-4bea-accc-a5a5cd41c9ec.jpg\" alt=\"Askar 50P AF Kit size diagram for electronic focuser installation\"\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4fb4b73f-9477-4c21-bd8a-1086de452913.jpg\" alt=\"Askar 50P AF Kit installation diagram for electronic focuser adaptation\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53155932668015,"sku":"50P AF KIT","price":110.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/50pafkit1.webp?v=1779737067"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/collections\/50p.webp?v=1779734457","url":"https:\/\/ontariotelescope.com\/collections\/p-series.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}