{"title":"Filter Holders","description":null,"products":[{"product_id":"zwo-seestar-s50-2-threaded-filter-holder-m48-x-0-75","title":"Seestar S50 2\" M48 x 0.75 Threaded Filter Holder","description":"\u003cp\u003eThis 2 inch threaded filter holder securely attaches to Seestar S50 telescopes using an M48 x 0.75 thread for distortion-free imaging. Constructed from durable PETG, it is compatible with a wide range of 2 inch astrophotography filters, including light pollution, dual band, and UHC options, for great views of star clusters, galaxies, and nebulae.\u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":47868436545869,"sku":"1002","price":7.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/IMG_7378-Edit-700.png?v=1703704466"},{"product_id":"oa-seestar-s50-55mm-x-0-75mm-pitch-filter-holder","title":"OA Seestar S50 55mm Threaded Filter Holder (M55 x 0.5)","description":"\u003cheader id=\"gs-header\" data-mce-fragment=\"1\"\u003e\n\u003ch1 data-mce-fragment=\"1\"\u003eZWO Seestar S50 Threaded 55mm Filter Holder\u003c\/h1\u003e\n\u003c\/header\u003e\n\u003cdiv class=\"gs-zoneB\" id=\"gs-descriptionArea\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"gs-description\" data-mce-fragment=\"1\"\u003e\u003cmain data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" typeof=\"Product\" vocab=\"https:\/\/schema.org\/\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAre you ready to take your stargazing experience to the next level? Our 55mm Seestar S50 Filter Holder with an M55 0.5 Thread Size is the perfect accessory for amateur and professional astronomers alike. Whether you're observing distant galaxies, capturing stunning astrophotography, or studying celestial objects in detail, this filter holder is an essential addition to your Seestar S50 setup.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e🌟 Key Features: ✨ The M55 0.5 thread size ensures a secure fit and eliminates any light leakage, allowing you to capture crisp, clear images without distortion.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e✨55mm Compatibility: Our filter holder is designed to work seamlessly with 55mm filters having the M55 0.5 thread size (tested with K\u0026amp;F) , making it compatible with a wide range of 55mm filters.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e✨ Easy Installation: Setting up your filter holder is a breeze, even for beginners. Simply push-fit it to your Seestar S50 and start exploring the universe.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e✨ Superior Build Quality: Crafted from high-quality PETG, our filter holder is durable and built to last. It can withstand the rigors of outdoor use, ensuring your investment lasts for years to come.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e✨ Versatile Filter Compatibility: Use this holder with various 55mm filters with M55 0.5 thread sizes, such as light pollution, dual band, and uhc filters, to enhance your observations and astrophotography.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e✨ Wide-Field Observations: Perfect for wide-field views of star clusters, galaxies, and nebulae, this filter holder lets you see the universe in all its glory by employing various filter types\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUpgrade your Seestar S50 experience with our 55mm Filter Holder. Don't miss out on this fantastic opportunity to transform your stargazing adventures.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e* Please note the Seestar S50, K\u0026amp;F filter, and Sill Stand© shown in the images are for illustrative purposes only *\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e** If ordering internationally please be aware that you may have to pay additional import duties and sales tax. This will vary depending on your country and is not a charge imposed by Oak Astro, if in doubt about what those charges may be then please contact your local customs office.\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":48183862001997,"sku":"","price":7.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/IMG_7406-Enhanced-NR-HDR_c70cab79-3270-4d7b-8d69-677f674ccdc8.png?v=1712280122"},{"product_id":"oa-s50-afh-sol49","title":"49mm Flip-Up Solar Filter Holder for Seestar S50","description":"\u003cp\u003eThis 49mm neutral density filter holder allows you to mount a K\u0026amp;F ND1000000 solar filter to your Seestar S50 for safe solar and astrophotography (filter not supplied). Its quick flip-up design lets you move the filter out of the way during totality and return it to position without damaging the S50, and the durable construction supports versatile use with other compatible 49mm filters.\u003c\/p\u003e\n\u003cp\u003ePlease note there are no filters included with the purchase of the filter holder.\u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":48831151112525,"sku":"OA-S50-AFH-SOL49","price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/S50-AFH-SOL49-1-1.png?v=1764545222"},{"product_id":"oa-d2oak","title":"OA-D2OAK Dwarf 2 Optical Accessory Kit","description":"\u003cp\u003eAfter many requests to produce something for the Dwarf 2, we are now offering the D2 OAK Kit.\u003c\/p\u003e\n\u003cp\u003eThe kit features a magnet mounted holder with 1 x 1.25\" filter holder for the wideangle lens, while the telephoto lens is served by a wider fitting allowing for the attachment of our custom filter holder which allows for the mounting of standard 1.25\" filters and a screw on flocked dew shield \/ light hood. The kit also comes with 3 masks, Bhatinov for focussing, Webb and Newtonian for adding some star spikes to your images.\u003cbr\u003eThe kit also includes a bag to hold all your D2 OAK Kit components.\u003cbr\u003e\u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":50907480129869,"sku":"OA-D2OAK","price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/D2-OAK_Catalog_Thumbnail.png?v=1764537934"},{"product_id":"oa-d3oak-optical-accessory-kit","title":"OA-D3OAK Dwarf 3 Optical Accessory Kit","description":"\u003cp\u003eThe OA-D3OAK Dwarf 3 Optical Accessory Kit is essential accessory set for Dwarf 3 owners. With its flocked dew shield and magnetic filter holder, it guards against moisture and unwanted stray light, helping to increase the contrast in images. Compatible with both 2 inch and 1.25 inch filters, it's a versatile and must-have addition to Dwarflab Dwarf 3.\u003c\/p\u003e\n\u003cp\u003eThe kit has now been updated to include a cap to cover the wide angle lens when using your own solar filter, a bhatinov mask, and two diffraction spike masks which provide 4 and 6 star spikes respectively, with the whole kit supplied with a bag to contain all the items.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContents:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Magnetic mount\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2 x 2\" filter holders\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x 2\" to 1.25\" adapter plate\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x M42 blanking plate to protect the wide angle lens should you wish to use your own solar filter.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x Flocked dew \/ light shield to help improve image contrast by reducing the entry of stray light into the system and helps protect against dew\/frost.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x Bhatinov mask\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2 x Diffraction spike masks (4 and 6 spike)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x Carrying bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you have purchased the kit prior to the masks being available and would like them they will be made available as a separate purchase shortly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* Please note that no filters are supplied with the kit and those used in photographs are for illustative purposes only. *\u003c\/strong\u003e\u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":51307668177229,"sku":"OA-D3OAK","price":25.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/D3-OAK_Catalog_Thumbnail.png?v=1764542727"},{"product_id":"seestar-s50-oa-oakv2","title":"Seestar S50 OA-OAKv2","description":"\u003ch2 style=\"text-align: center;\"\u003eIntroducing the NEW Oak Astro Optical Accessory Kit featuring the OA-AFH-V2\u003cbr\u003e\u003cbr\u003eDITCH THE STRING!\u003cbr\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFirst there was the OA-AFH, the worlds first articulated 2\" filter holder for use with the ZWO Seestar S50, designed for use in alt-az mode it ensured that precious filters were kept safe by moving them out of the way.\u003c\/p\u003e\n\u003cp\u003eNow the Seestar S50 has evolved and officially supports EQ (equatorial) mode, likewise the OA-AFH has evolved and now with version 2 of the filter holder will ensure that those filters are kept safe whether the Seestar is in alt-az or eq configuration.\u003c\/p\u003e\n\u003cp\u003eThe new design includes a remodelled ADS (advanced dew shield) to fit to the AFH-V2 combining the riffled and baffled upper with the flocked lower part. Normally these features were only available seperately or as add-ons, they are now part of the package.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNo more jams.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eNo more dew shields and filters on the floor.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eNo more string hanging off your Seestar holding your dew shield \/ filter holder on.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJust a reliable solution that ensures that your Seestar, expensive filters and dew shield are kept safe during use.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe OA-S50-AFH-V2 is also easy to flip up and out of the imaging train while imaging if you want to take some unfiltered (the Seestars selected internal filter will still be in place) exposures. \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe OAKv2 will be replacing the OAKv1 (we have some left which will be available at a reduced price - once they're gone, they're gone), as well as replacing the ADS offering.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eWhy replace the ADS? Well, the OAK v2 price is the same as the ADS kit, you don't have to use filters with it, although it offers that flexibility should you change your mind, which really makes the ADS kit redundant. OAK v2, more features, same price.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eMasks have also been retired, although we can make these available as an add-on should there be enough interest from customers.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe image of M81 (Bodes Galaxy) and M82 (Cigar Galaxy) are the result of around 24 hours of 30s exposures taken with a Seestar S50 in a Bortle 7 area from a garden surrounded by security lights with the OAKv2 kit fitted (it never needed to be removed). The exposures were stacked and processed in PixInsight. M101 was a little over 37 hours in the same conditions.\u003c\/p\u003e\n\u003cp\u003eThe OAKv2 kit comprises of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003eThe AFHv2 2\" articulated filter holder - remodelled threads.\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eA 2\" to 1.25\" adapter plate - Also usable in 2\" filter holders like the SVBONY SV226\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eRemodelled Advanced Dew Shield \/ Light Hood for the OAKv2 kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003ePlease note that the OA-S50-AFHv2 is NOT currently compatible with the OA Sillstand as the OA Sillstand does not provide enough clearance for the filter holder when the Seestar is in it's parked position, however we will be looking into remodelling the Sillstand so that they are compatible.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e*\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cstrong\u003eThe Seestar filter holder game has changed - forever - again.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":51524848746829,"sku":"OA-S50-OAKv2","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/640x640_bannerGlow_OAKv2.png?v=1754958987"},{"product_id":"oa-seestar-s50-oakv2-2-inch-filter-stacker","title":"OA Seestar S50 OAKv2 2 Inch Filter Stacker","description":"\u003cp\u003eThis item allows you to stack a second external 2 inch filter to your ZWO Seestar S50 if you have version 2 of our Seestar S50 Optical Accessory kit. It is placed into the fitting for your OAK Dew Shield allowing the 2nd filter to piggyback and provides functionality to still add the dew\/light shield.\u003c\/p\u003e\n\u003cp\u003eThe image of NGC 7000 was taken under a full moon with security and street lights from a bortle 7 location using our OAKv2 kit with the filter stacker added for a total of 3 filters in the imaging train, the internal UV\/IR filter of the Seestar S50, a SVBONY SV220, and an Optolong L-PRO light polution filters. The image is unprocessed other than enhancement performed by the Seestar and it's software. The lack of any gradients in the image given the surrounding light polution was impressive. Individual results will vary depending on location and which filters are being used, the image of NGC7000 is just illustrative of possible outcomes from filter stacking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou MUST own the OA-S50-OAKv2 kit to use this item.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":52160645923149,"sku":"OA-S50-OAKv2-FS","price":5.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/OA-S50-FS.jpg?v=1764545896"},{"product_id":"oa-s30-oak-optical-accessory-kit","title":"OA-S30 OAK Optical Accessory Kit","description":"\u003cp\u003eThe little brother to the S50 is getting it's very own OAK Kit and it works in EQ too.\u003c\/p\u003e\n\u003cp\u003eComing soon. \u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":52640847331661,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/S30-OAK_Catalog_Thumbnail.png?v=1764535187"},{"product_id":"oa-dl-mini-oak","title":"OA-DL-Mini-OAK","description":"\u003cp\u003eIntroducing the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOA-DL-Mini-OAK\u003c\/strong\u003e, the smallest smartscope now has the smallest accessory kit to go along with it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe kit features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA magnetic threaded base which also keeps the view from the wide angle lens unobstructed (when not using the dew shield, view is partially obstructed when the dew shield is fitted). This allows for the fitting of 3rd party 1.25\" astro filters and also the attachment of a threaded and flocked dew shield.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eA threaded and flocked dew \/ light shield.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eA Bhatinov mask as well as Newtonian (4 spike), and Webb (6 spike) diffraction masks are also included.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll fits into a handy carrying pouch which is also supplied.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSOLAR IMAGING - Recommend using the Dwarflab supplied filter\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eIf you intend to use your own 1.25\" solar filter with this kit:\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThe wide angle shield on the filter holder must be blocking the wide angle lens.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe DwarfLab mini as part of it's calibration process for tracking the sun fully closes (knocking the filter holder off)\u003c\/strong\u003e \u003cstrong\u003ebefore opening the scope again (at which point you must attach the filter holder again, before the main objective lens aligns with the sun.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThe dew\/light shield should not be used during solar imaging as this increases the chance of accidentally knocking off the filter holder and directly exposing the Mini's sensor to the sun leading to permanent damage.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eSolar imaging is undertaken entirely at the users own risk.\u003c\/em\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eCurrenty we've been experiencing an extrordinary amount of cloud (no clear sky in over 2 months) which means we haven't been able to take any shots with the Mini as yet. As soon as we get a clear night we'll get some example shots up in the product images.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Oak Astro","offers":[{"title":"Default Title","offer_id":53430322331981,"sku":null,"price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8289\/6205\/files\/Dwarf_Mini_OAK-Thumbnail.png?v=1772123733"}],"url":"https:\/\/oakastro.com\/collections\/filter-holders.oembed","provider":"Oak Astro","version":"1.0","type":"link"}