{"title":"Extension Tubes \u0026 Spacers","description":"","products":[{"product_id":"2-focuser-extension-tube-x2c-0008","title":"Tele Vue Focuser Extension Tube - 2\" - X2C-0008","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eAbout the TeleVue 2\" Focuser Extension Tube...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003e\u003cb\u003eTeleVue Telescope Drawtube Extensions\u003c\/b\u003e help your telescope reach focus when not using a diagonal - as is the case in many imaging applications. They are also useful (with or without diagonal) when you need more out-travel for focusing on nearby terrestrial subjects.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTeleVue Extention Tubes\u003c\/b\u003e slip into any telescope''s 2\" drawtube and includes brass clamp rings to prevent marring of accessory barrels.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eTeleVue 2\" Focuser Extension Tube Features...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdds an additional 2\" of focuser travel\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eUseful (with or without diagonal) when you need more out-travel for focusing on nearby terrestrial subjects\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eFits into any telescope''s 2\" drawtube\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes brass clamp rings to prevent marring of accessory barrels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eTeleVue 2\" Focuser Extension Tube Specifications...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003eEquipment Type: Focuser Extension\u003c\/p\u003e\n\u003cp\u003eBarrel Size: 2\"\u003c\/p\u003e\n\u003cp\u003eLength: 2\"\u003c\/p\u003e\n\u003cp\u003eWarranty: Limited Lifetime\u003c\/p\u003e\nTeleVue Product Number: X2C-0008","brand":"TeleVue","offers":[{"title":"Default","offer_id":10552429953,"sku":"TEL-X2C-0008","price":109.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/pExtTubes2in_tv3b.jpeg?v=1776458988"},{"product_id":"3-5-focuser-extension-tube-x3c-0009","title":"Tele Vue Focuser Extension Tube - 3.5\" - X3C-0009","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eAbout the TeleVue 3.5\" Focuser Extension Tube...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003e\u003cb\u003eTeleVue Telescope Drawtube Extensions\u003c\/b\u003e help your telescope reach focus when not using a diagonal - as is the case in many imaging applications. They are also useful (with or without diagonal) when you need more out-travel for focusing on nearby terrestrial subjects.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTeleVue Extention Tubes\u003c\/b\u003e slip into any telescope''s 2\" drawtube and includes brass clamp rings to prevent marring of accessory barrels.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eTeleVue 3.5\" Focuser Extension Tube Features...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdds an additional 3.5\" of focuser travel\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eUseful (with or without diagonal) when you need more out-travel for focusing on nearby terrestrial subjects\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eFits into any telescope''s 2\" drawtube\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes brass clamp rings to prevent marring of accessory barrels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eTeleVue 3.5\" Focuser Extension Tube Specifications...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003eEquipment Type: Focuser Extension\u003c\/p\u003e\n\u003cp\u003eBarrel Size: 2\"\u003c\/p\u003e\n\u003cp\u003eLength: 3.5\"\u003c\/p\u003e\n\u003cp\u003eWarranty: Limited Lifetime\u003c\/p\u003e\nTeleVue Product Number: X3C-0009","brand":"TeleVue","offers":[{"title":"Default","offer_id":10552430017,"sku":"TEL-X3C-0009","price":109.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/pExtTubes2in_tv3b_cdc115df-5ac4-44c4-9078-80b5119935f2.jpeg?v=1776459196"},{"product_id":"set-of-6-accessory-tubes-for-2-4-tls-2245","title":"Tele Vue Set of 6 Accessory Tubes for 2.4\" - TLS-2245","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp class=\"ov-desc\"\u003eThis \u003cb\u003eAccessory Tube Set for 2.4\"\u003c\/b\u003e is comprised of 6 tubes with the following lengths: 1.0mm, 2.0mm, .25\", .375\", .50\", 1.0\".\u003c\/p\u003e\n\u003cp\u003eThese tubes allow the user to establish the correct distance between a field lens and an imaging device. These black anodized aluminum rings feature reflection-reducing threads that enhance image contrast by reducing the possibility of internal reflections.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":12135089473,"sku":"TEL-TLS-2245","price":218.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLS_2245_Set6Space24.jpeg?v=1776459122"},{"product_id":"televue-0-25-6-4-mm-long-accessory-tube-for-2-4-tla-0250","title":"TeleVue 0.25\" (6.4 mm) Long Accessory Tube for 2.4\" - TLA-0250","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue 0.25\" (6.4 mm) Long Accessory Tube for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue 0.25\" Length Accessory Tube for 2.4\" adds 0.250\" (6.4 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451386576926,"sku":"TEL-TLA-0250","price":55.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLA_0250_0275inSpace24.jpg?v=1776459171"},{"product_id":"televue-0-375-9-5-mm-long-accessory-tube-for-2-4-tlb-0375","title":"TeleVue 0.375\" (9.5 mm) Long Accessory Tube for 2.4\" - TLB-0375","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue 0.375\" (9.5 mm) Long Accessory Tube for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue 0.375\" Length Accessory Tube for 2.4\" adds 0.375\" (9.5 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451437531166,"sku":"TEL-TLB-0375","price":55.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLB_0375_0375inSpace24.jpg?v=1776459240"},{"product_id":"televue-0-50-12-7-mm-long-accessory-tube-for-2-4-tlc-0500","title":"TeleVue 0.50\" (12.7 mm) Long Accessory Tube for 2.4\" - TLC-0500","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue 0.50\" (12.7 mm) Long Accessory Tube for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue 0.50\" Length Accessory Tube for 2.4\" adds 0.50\" (12.7 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451465121822,"sku":"TEL-TLC-0500","price":55.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLC_0500_05inSpace24.jpg?v=1776459023"},{"product_id":"televue-1-0-25-4-mm-long-accessory-tube-for-2-4-tld-1000","title":"TeleVue 1.0\" (25.4 mm) Long Accessory Tube for 2.4\" - TLD-1000","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue 1.0\" (25.4 mm) Long Accessory Tube for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue 1.0\" Length Accessory Tube for 2.4\" adds 1.0\" (25.4 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451473969182,"sku":"TEL-TLD-1000","price":55.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLD_1000_1inSpace24.jpg?v=1776458932"},{"product_id":"televue-0-040-1-mm-long-accessory-tube-for-2-4-tlf-0040","title":"TeleVue 0.040\" (1 mm) Long Accessory Tube for 2.4\" - TLF-0040","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue 0.040\" (1 mm) Long Accessory Tube for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue 0.040\" Length Accessory Tube for 2.4\" adds 0.040\" (1 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451492614174,"sku":"TEL-TLF-0040","price":32.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLF_0040_1mmSpace24.jpg?v=1776459192"},{"product_id":"televue-0-080-2-mm-long-accessory-tube-for-2-4-tlg-0080","title":"TeleVue 0.080\" (2 mm) Long Accessory Tube for 2.4\" - TLG-0080","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue 0.080\" (2 mm) Long Accessory Tube for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue 0.080\" Length Accessory Tube for 2.4\" adds 0.080\" (2 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451507458078,"sku":"TEL-TLG-0080","price":32.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLG_0080_2mmSpace24.jpg?v=1776459253"},{"product_id":"televue-set-of-two-accessory-tubes-tlf-tlg-for-2-4-tls-1121","title":"TeleVue Set of Two Accessory Tubes (TLF, TLG) for 2.4\" - TLS-1121","description":"\u003ch3 style=\"text-align: center;\"\u003eTeleVue Set of Two Accessory Tubes (TLF, TLG) for 2.4\"\u003c\/h3\u003e\n\u003cp\u003eThe Tele Vue Set of Two Accessory Tubes (TLF, TLG) is a convenient set of two extension tubes, the 1 mm spacer and the 2 mm spacer for your imaging accessories. Includes one each of the TLF-0040 and one each of the TLG-0080 tubes. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope. This set provides more flexibility.\u003c\/p\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":7451521384478,"sku":"TEL-TLS-1121","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/TLS_1121_Set2Space24.jpg?v=1776459286"},{"product_id":"celestron-m42-spacer-kit-93618","title":"Celestron M42 Spacer Kit - 93618","description":"\u003ch3 style=\"text-align: center;\"\u003eCelestron M42 Spacer Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpacer Ring Kit for astroimaging purposes\u003c\/li\u003e\n\u003cli\u003eAdjusts back-focus between your camera and telescope for the best astroimaging results\u003c\/li\u003e\n\u003cli\u003eKit includes 3 spacer rings of different lengths (7.5 mm, 12 mm, and also 30 mm)\u003c\/li\u003e\n\u003cli\u003eThreads to your T-Ring and T-Adapter with standard male and female T-Threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCelestron’s M42 Spacer Ring kit includes three different length spacer rings to achieve the proper back-focus distance with our popular Celestron optical tubes and T-thread camera adapters. They are made so as to be compatible with M42 x 0.75 (T-thread) camera adapters.\u003c\/p\u003e\n\u003cp\u003eTo achieve the best astroimages, it is important to attain the proper back-focus distance for your camera relative to the telescope it is being used with. If the back-focus distance your camera consumes is not exact, the performance at the corners of full frame imaging sensors will suffer—stars will appear elongated and not as pinpoints. Example: RASA 8 with a ZWO ASI 183 MC PRO camera - Required back-focus distance for RASA 8 with included M42 camera adapter: 25 mm. Back-focus consumed by ZWO ASI 183 MC PRO camera: 17.5mm - To achieve equal back-focus distance, a 7.5 mm M42 spacer ring is required.\u003c\/p\u003e\n\u003cp\u003eDepending your method of astrophotography (DSLR or CCD\/CMOS), there are two ways to use the M42 Spacer Rings. If you are using a DSLR, place the desired M42 Spacer Ring between your T-Ring and your T-Adapter for your optical tube. If you are using a CCD or CMOS camera, place the desired M42 Spacer Ring between the camera and the T-Adapter for your optical tube. These suggestions assume you are working with standard camera equipment for astronomical imaging applications.\u003c\/p\u003e\n\u003cp\u003eThe M42 Spacer Rings are machined aluminum and then black anodized. The internal surfaces are blackened and glare-threaded to provide the highest contrast. Each spacer ring has a knurled surface, providing a great gripping surface for threading\/unthreading. The M42 Spacer Rings are made so as to be compatible with M42 x 0.75 (T-thread) camera adapters.\u003c\/p\u003e\n\u003cp\u003eThe 7.5 mm Spacer Ring works best with the RASA 8 for many ZWO cameras. The 12 mm Spacer Ring works best with RASA 8 for many Atik cameras. The 30 mm Spacer Ring works best with ZWO camera and a filter slider attached, to convert to 55 mm back focus, with standard Schmidt-Cass scopes and with EdgeHD scopes.\u003c\/p\u003e\n\u003cp\u003eCamera may be shown in photo for illustration purposes, only, camera is NOT included.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpacers:\u003c\/td\u003e\n\u003ctd\u003e3 each M42 type T-Thread Spacers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread:\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpacer lengths:\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (.29\"), 12 mm (.47\"), 30 mm (1.18\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction:\u003c\/td\u003e\n\u003ctd\u003eAluminum black anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior:\u003c\/td\u003e\n\u003ctd\u003eBlackened and glare threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior:\u003c\/td\u003e\n\u003ctd\u003eKnurled grip surface, each ring labeled with its length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":31882427662449,"sku":"CEL-93618","price":67.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/SpacerRingKit.jpg?v=1776459030"},{"product_id":"explore-scientific-extension-ring-set-m48x0-75-5-pieces-510381","title":"Explore Scientific Extension Ring Set M48x0.75 - 5 Pieces - 510381","description":"\u003ch3 style=\"text-align: center;\"\u003eExplore Scientific Extension Ring Set M48x0.75 - 5 Pieces\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a set of five extension tubes\u003c\/li\u003e\n\u003cli\u003e5 mm, 10 mm, 15 mm, 20 mm, and 30 mm\u003c\/li\u003e\n\u003cli\u003eThread connection is M48 x 0.75 mm\u003c\/li\u003e\n\u003cli\u003eUsed to set a distance from focal plane to a camera\u003c\/li\u003e\n\u003cli\u003eUse with correctors and field flatteners\u003c\/li\u003e\n\u003cli\u003eAlso suitable for 2.0 inch color and nebular filters\u003c\/li\u003e\n\u003cli\u003eLarge inner diameter of 45.0 mm\u003c\/li\u003e\n\u003cli\u003eOuter diameter is 50.65 mm (2\") for easy mounting\u003c\/li\u003e\n\u003cli\u003eTotal weight is only 85 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Explore Scientific Extension Ring Set M48 x 0.75 - 5 Pieces includes a set of the most convenient length of extension tubes from 30 mm to 5 mm length with thread connection of M48 x 0.75 mm in one set. These are used for adjusting different distances of your astro-imaging camera to the focal plane of the telescope or the corrector\/field flattener. There is an M48 x 0.75 internal and external thread in each individual tube. This particular thread is also called large T2 photo thread or 2.0 inch filter thread. Camera specific bayonet adapters or filters can be used with these extension rings by virtue of their design.\u003c\/p\u003e\n\u003cp\u003e5 different tubes are in this set. These tubes (rings) have the extension distances of 30 mm, 20 mm, 15 mm, 10 mm, and 5 mm. The larger free inner diameter of 45.0 mm effectively prevents undesired vignetting of the camera sensor. The outer diameter of the sleeves is exactly 50.65 mm. This design feature means that each ring can be mounted directly in any 2 inch diameter eyepiece adapter. That feature makes them even more convenient and useful!\u003c\/p\u003e\n\u003cp\u003eThis product comes with a Limited USA One Year Warranty from Explore Scientific, when product is registered within 60 days of purchase.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer:\u003c\/td\u003e\n\u003ctd\u003eExplore Scientific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMfr. SKU:\u003c\/td\u003e\n\u003ctd\u003e510381\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction:\u003c\/td\u003e\n\u003ctd\u003eA set of five Extension Tubes (Rings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection:\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 mm threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial:\u003c\/td\u003e\n\u003ctd\u003eAluminum metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor:\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizes Marked:\u003c\/td\u003e\n\u003ctd\u003eYes, each ring is marked with ID of length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":39405839646833,"sku":"EXP-510381","price":96.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/510381_1.jpg?v=1776459255"},{"product_id":"m42-m42-extender-21mm","title":"ZWO M42-M42 Extender - 21mm - T2-EXT-21","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe ZWO 21mm Extension ring has M42 male and female threads.  This anodized black 21mm extender can help you reach the proper focusing distance for your set-up.\u003c\/span\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40259054534769,"sku":"ZWO T2-EXT-21","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/21mmExtend600x600-460x460.jpg?v=1776459186"},{"product_id":"zwo-m42-m48-extender-16-5mm","title":"ZWO M42-M48 Extender - 16.5mm - ZWO T2-M48-16.5","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe ZWO M42-M48 16.5mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs a certain chip-reducer spacing. It can also help you to get the 55mm backfocus distance.  \u003c\/span\u003e\u003c\/p\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConnection Side A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM42x0.75 (T\/T2) Thread- Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConnection Side B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM48x0.75 Thread- Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOptical Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e16.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40259060498545,"sku":"ZWO T2-M48-16.5","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/16.5mmExtend600x600-460x460.jpg?v=1776459090"},{"product_id":"zwo-t2-t2-extender-11mm-zwo-t2-t2-11","title":"ZWO T2-T2 Extender - 11mm - T2-T2-11","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe ZWO T2 11mm Extension has M42*075 female to female threads and  is useful to obtain precise distancing when using a focal reducer or corrector that needs a particular chip-reducer spacing to reach the proper focus. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 11 mm T2 Extender is compatible with the ASI1600mm, ASI1600MC, ASI1600MM-C or ASI1600MC-C camera but will work in any optical chain where a T2 to T2 adapter with 11 mm of back focus is required.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40259060662385,"sku":"ZWO-T2-T2-11","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/zwo-m42-11mm-ring-t2-t2-11-astronomy-plus_592x592_52662411-18c0-4d6a-867e-f5727436c7a3.webp?v=1776459147"},{"product_id":"zwo-m48-male-m48-female-16-5mm-adapter-zwo-m48-ext16-5","title":"ZWO M48 (male) - M48 (female) 16.5mm Adapter - ZWO-M48-EXT16.5","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe ZWO M48 male to M48 female 16.5mm adapter can be used to obtain precise spacing when using a focal reducer or corrector, or other accessory in order to achieve the correct back focus.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe M48-EXT16.5 is made of black anodized aluminum.  You could also use it as a short nosepiece, or as a M48 general extension tube to add 16.5 mm of optical length to your set up.\u003c\/span\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40259061022833,"sku":"ZWO-M48-EXT16.5","price":32.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/zwo-accessory-zwo-m48-male-m48-female-16-5mm-adapter-zwo-m48-ext16-5-15500474286160.jpg?v=1776458993"},{"product_id":"zwo-m54m-m48f-2mm-adapter-zwo-m54m-m48f-2","title":"ZWO M54M-M48F Adapter - 2mm Thick - ZWO M54M-M48F-2","description":"\u003cp data-mce-fragment=\"1\"\u003eM54-M48-2 adapter is independently developed by ZWO and mainly used for connecting to 2”EFW and M54 filter drawer.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe thickness of this adapter is 2mm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eThe edge is knurled to increase the friction so that the installation and disassembly will be much easier.\u003c\/span\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40259061874801,"sku":"ZWO M54M-M48F-2","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/M54-M48-2-_1_-460x460.jpg?v=1776458954"},{"product_id":"wo-m54-male-m48-female-extender-2-m54-nosepiece-21mm-length-zwo-m54-m48-21","title":"ZWO M54 Male - M48 Female Adapter - 21mm Long - M54-M48-21","description":"\u003cspan data-mce-fragment=\"1\"\u003eA M54 (male) to M48 (female) adapter.  M54 male threads on one side and M48 female threads on the other side. It can be used as a 2\" nosepiece with cameras that have M54 threads. You can thread in 2\" filters into the bottom of the nosepiece.\u003c\/span\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40259062562929,"sku":"ZWO-M54-M48-21","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/ScreenShot2024-02-20at1.17.46PM.png?v=1776459240"},{"product_id":"skymentor-extension-tube-adapter-to-t2-mount-screw-m42-0-75","title":"Sky Mentor 65mm Extension Tube with T2 Adapter","description":"\u003ch2 style=\"text-align: center;\"\u003eSky Mentor Extension Tube Adapter to T2 Mount\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe SkyMentor extended cylinder length is 65mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe extension tube fits all standard 1.25\" telescopes and microscopes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003efilter thread on the bottom for any 1.25-inch filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eMade of high quality, durable aluminum alloy\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eT2 thread is M42*0.75\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sky Mentor","offers":[{"title":"Default Title","offer_id":40475059978353,"sku":"SMT-EXTENSION","price":19.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Extension_Tube_with_T2_Adapter.jpg?v=1776458917"},{"product_id":"zwo-m54-male-m54-female-adapter-16-5mm-long-m54-16-5","title":"ZWO M54 Male - M54 Female Adapter - 16.5mm Long - M54-16.5","description":"\u003cspan data-mce-fragment=\"1\"\u003eA M54 (male) to M54 (female) adapter.  M54 male threads on one side and M54 female threads on the other side. It can be used as a 2\" nosepiece with cameras that have M54 threads. The adapter provides 16.5mm of spacing.\u003c\/span\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40567125770353,"sku":"ZWO-M54-16.5","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/M54_M54_16.5.jpg?v=1776459009"},{"product_id":"zwo-m54-male-m54-female-adapter-21mm-long-m54-21","title":"ZWO M54 Male - M54 Female Adapter - 21mm Long - M54-21","description":"\u003cspan data-mce-fragment=\"1\"\u003eA M54 (male) to M54 (female) adapter.  M54 male threads on one side and M54 female threads on the other side. When using this adapter it will add 21mm to your optical chain.\u003c\/span\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40567176167537,"sku":"ZWO-M54-21","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/M54_21.jpg?v=1776459022"},{"product_id":"zwo-m54-male-m48-female-adapter-m54-m48","title":"ZWO M54 Male - M48 Female Adapter - M54-M48","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eA M54 (male) to M48 (female) adapter.  M54 male threads on one side and M48 female threads on the other side. When used as designed with the ASI2600MC Duo camera, this adapter does not add length to the optical chain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote:  This M54M-M48F adapter comes standard with the ASI2600 Duo Camera, but is offered here to those who need one.\u003c\/em\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40567187144817,"sku":"ZWO-M54-M48","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/M54-M48_Standing.jpg?v=1776459177"},{"product_id":"zwo-t2-t2-adapter-t2-t2","title":"ZWO T2-T2 Adapter - T2-T2","description":"\u003cspan data-mce-fragment=\"1\"\u003eThe ZWO T2-T2 Adapter Ring connects one T2 compatible accessory to another.  It adds just 2mm to the length of your optical chain.\u003c\/span\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":40824031150193,"sku":"ZWO-T2-T2","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/ZWO_T2-T2.jpg?v=1776459094"},{"product_id":"zwo-m42-m48-extender-22-5mm-zwo-m42-m48-22-5","title":"ZWO M42-M48 Extender - 22.5mm - ZWO M42-M48-22.5","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe ZWO M42-M48 22.5mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs a certain chip-reducer spacing. It can also help you to get the 55mm backfocus distance.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cspan\u003eThis 22.5 mm spacer is useful for ASI2600MM Pro users who want to connect the camera to a 7x36mm filter wheel to reach 55mm back focus distance when an OAG-L is not in play. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/ZWO_Connection_with_M42-M48-22.5.webp?v=1724971002\" width=\"642\" height=\"351\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConnection Side A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM42x0.75 (T\/T2) Thread- Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConnection Side B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM48x0.75 Thread- Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOptical Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e22.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":41334718988401,"sku":"ZWO-M42-M48-22.5","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/M42_M48_22_5_Adapter.webp?v=1776458952"},{"product_id":"sky-mentor-eos-extension-tube-2-ta16","title":"Sky Mentor EOS Extension Tube - 2\" - TA16","description":"\u003cp\u003eThis metal 2\" extension tube comes with a M48 EOS T-Ring, making it ready to connect to your Canon EOS camera and telescope to do prime focus DSLR photography.  It is especially handy when used with a Newtonian reflector.\u003c\/p\u003e\n\u003cp\u003eThe telescope side of the adapter is threaded to accept standard 2\" filters. \u003cbr\u003eThe inside of the adapter is blackened to minimize reflections.\u003c\/p\u003e","brand":"Sky Mentor","offers":[{"title":"Default Title","offer_id":41859503718513,"sku":"SMT-TA16","price":65.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/20250429_145017.jpg?v=1776459009"},{"product_id":"qhy-m54-spacer-0-5-mm-20065","title":"QHY M54 Spacer - 0.5 mm - 20065","description":"\u003cp\u003e\u003cspan\u003eThis QHY 0.5mm M54 Spacer is designed for those who have very strict back focus requirements. Combined with the proper adapter kit for your set-up, the 0.5mm spacer can be used for precise adjustment.\u003c\/span\u003e\u003c\/p\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":43092291911793,"sku":"QHY-20065","price":14.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Spacer.jpg?v=1777414274"},{"product_id":"qhy-m54-spacer-1-mm-20066","title":"QHY M54 Spacer - 1 mm - 20066","description":"\u003cp\u003e\u003cspan\u003eThis QHY 1mm M54 Spacer is designed for those who have very strict back focus requirements. Combined with the proper adapter kit for your set-up, the 1mm spacer can be used for precise adjustment.\u003c\/span\u003e\u003c\/p\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":43092292501617,"sku":"QHY-20066","price":14.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Spacer_0e653450-cc75-42ef-8214-8fe430e51bc3.jpg?v=1777414443"},{"product_id":"qhy-m54-m54-thread-adapter-20134","title":"QHY M54 - M54 Thread Adapter - 5 mm - 20134","description":"\u003cp\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-processed=\"true\"\u003e\u003cspan class=\"Yjhzub\"\u003eThis  M54 female to M54 male threaded adapter is 5 mm thick and is machined for quality performance. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":43092293124209,"sku":"QHY-20134","price":14.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/M54_M54.jpg?v=1777415677"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/collections\/TLS_2245_Set6Space24.jpg?v=1776870065","url":"https:\/\/khanscope.com\/collections\/extension-tubes-spacers.oembed?page=2","provider":"Khan Scope Centre","version":"1.0","type":"link"}