William optics zenithstar 81. Its W-interNAL focuser is also compatible with EAF.

William optics zenithstar 81 Its an amazing scope and will serve its purpose for The William Optics Zenithstar 73 is an apochromatic doublet refractor telescope built for astrophotography. Get yours at Agena! Explore the universe with precision-crafted optics from William Optics. 9 Imaging Apo Refractor with EQ-35 Mount Package - Gold # A-Z103GD-PAll New 2019 Super ZenithStar 81 F6. I was wondering if anyone had more information on mounting the ZWO EAF bracket to a Mar 28, 2005 · I have owned several shorttube telescopes in the past, so testing the newborn child in the William Optics-family was a nice task… After a few years of observing without a portable scope to fill in the hours before moonrise or short moments of cloudless evenings, I deciced to buy another travel co Available in vibrant red or elegant gold, the ZenithStar 81 WIFD boasts a compact and durable build. The William Optics ZenithStar ZS81 is equipped with a double-aperture prime lens. 9 A premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). I know I could wait until they arrive in a few weeks and then measure them but, the way things are with shipping at the ZenithStar 81 WIFD 採用 專利中置式對焦系統（WIFD, William Optics Internal Focus Design），在結構上徹底改良傳統外部對焦機制，確保光軸在對焦過程中始終保持完美一致，即使搭載重型攝影設備也能維持極高穩定度。無論用於 天文攝影 或 目視觀測，皆能展現出色的光學精度與細膩成像。 鏡筒提供 經典紅 與 The William Optics Internal Focus Design (WIFD) relocates the focuser to the center of the telescope. ZWO AM5 with William Optics 81 Zenithstar Apo Telescope 5. May 2, 2020 · William Optics Zenithstar 81 - Dew Shield Diameter - posted in Refractors : I’ve just ordered a William Optics Zenithstar 81 and William Optics 50mm Guide Scope and I’m trying to find out what the diameter of the dew shields are so I can order to appropriate dew heater. William Optics Zenithstar 81 Version IV F/6. 00 ready for shipping in 3-5 weeks William Optics Apochromatic refractor AP 61/360 ZenithStar ZS61 II OTA $ 850. 00 USD $798. 00 USD Tax excluded. 6 lbs (3 kg) and uses FPL-53 glass for high-contrast images with minimal chromatic aberration. Ideal for astrophotography and wildlife viewing, it boasts a quick f/5. Apr 12, 2023 · The Zenithstar 81 APO from William Optics features an 81 mm aperture, a 555 mm focal length, and a focal ratio of f/6. Any help appreciated! Nov 27, 2020 · I am looking at Williams Optics Zenithstar 81 APO, William Optics GT71, Explore Scientific ED80, or the Skywatcher ED80 as telescope choices. Aug 20, 2025 · Support Product Manual Telescopes ZenithStar 81 Updated Aug 20, 2025 • by WO Team 1 min read In the Box Unleash your passion for astrophotography with the William Optics Zenithstar 81 APO, a premium refractor telescope designed to deliver exceptional image quality and versatility. Ive been all over there, checking out accessories and scopes the past few days and never saw the Z81. In stock now! WO GT81: https://bit. Suitable for full cell cameras. Brands AstroBin's equipment database is entirely maintained by the community. In the Box Unleash your passion for astrophotography with the William Optics Zenithstar 81 APO, a premium refractor telescope designed to deliver exceptional image quality and versatility. This enables very good wide-angle images of entire star fields. 00 USD Fluorostar 132 $3,898. Gran-Turismo 81 WIFD $1,714. William Optics Zenithstar 81 Apo Refractor Blue Trim FPL-53 Doublet RACI Finder Pre-Owned · William Optics $859. We carry an extensive selection of products from this trusted brand, including high-quality William Optics binoculars and eyepieces. It provides a sharp image to any DSLR, and pristine clarity for both visual observers and astrophotographers. 00 USD Save 11% [Refurbished] MiniCat 51 WIFD $798. ly/3N7YRFsWOGT81 astro package: https://bit. "🔭 WILLIAM OPTICS ZENITHSTAR 81 WIFD – Discover Next-Level Astronomy Explore the WILLIAM OPTICS ZENITHSTAR 81 WIFD, available exclusively at Vorion Scientific India. 9 APO Refractor. This is my video on how to install the William Optics Camera Angle Rotator and the William Optics Adjustable Flat6A III 0. It provides a clear image for any digital SLR camera, also providing a crystal clear image for visual viewing. This high-performance instrument is perfect for astrophotographers and astronomers seeking to capture the beauty of the night sky with precision and clarity. Not only does Nov 22, 2022 · [SOLD] William Optics Zenithstar 81 IceTrade ArchivesForum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Beginners Start Here Beginners Talk Beginners Equipment Discussions Beginners Astrophotography General Astronomy General Chat Astronomy Books and Media Star Parties, Club and Community Events Celestial and Astronomical Events Observational and Dec 26, 2021 · after battling weather for the past few months i was finally able to collect enough data to finish a few projects with the William Optics GT81. First Light Optics - Suppliers of Astronomy telescopes, binoculars and accessories from Skywatcher, Celestron, Meade, William Optics, Atik, Imaging Source, Starlight For sale, a used William Optics Zenthstar 81 APO Doublet Refractor that is in excellent condition and was purchased new in 2022. Currently I am still improving the DEC plate mounting and plan to have a new The ZenithStar series from William Optics consists of compact but very high quality apochromats, which are ideal for use with a DSLR camera. 8 + ZWO EFW (2") + ASI533MM I get focus, but I'm reading and now starting to notice the edge stars aren't ask crisp. Carrying case is included. I was able to easily connect it all except for the mounting plate (which is kind of important). William Optics All New 0. Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps optics perfectly aligned, even with heavy cameras. 8x Reducer & Flattener - posted in Refractors : Hello, dear forum members, I need support on a subject, I put all the rings on and now Im taking photos, but when I look in detail, I see the stars in the corners very badly. Available in vibrant red or elegant gold, the ZenithStar 81 WIFD boasts a compact and durable build. However, each combination results in a different back focus distance. 00 USD The William Optics ZenithStar 81 mm aperture Doublet APO Refactor is an extremely versatile telescope ideal for both astrophotography and general photography. 40 5% William Optics Gran Turismo 81 Internal Focus Design (WIFD) Apochromat $1,898. Finished in an elegant gold, this doublet refractor will deliver exceptional performance The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. Aug 20, 2025 · Support Product Manual Telescopes ZenithStar 81 Updated Aug 20, 2025 • by WO Team 1 min read The ZenithStar 81 WIFD is a great choice for astronomers who want to study distant galaxies or planetary features. This adjustability also allows certain flatteners to be compatible with multiple telescope models. Sep 23, 2025 · A William Optics Zenithstar 81mm refractor in excellent condition. My budget allows about $1,500 all in so considering the WO Zenithstar 81 or the AT 102ED - will put them on a The William Optics ZenithStar 81 is an extremely well crafted and versatile refractor, an ideal instrument for deep sky imaging with DSLRs or dedicated astronomy cameras with APS-C and full-frame sensors. Bot VerificationVerifying that you are not a robot William Optics Zenithstar 81 APO Doublet [reduced] Please Log In to view the details for this classified ad. Jun 2, 2023 · For comparison, you could purchase a much larger William Optics ZenithStar 81 with a field flattener for 2/3 of the price ($1,100) of the smaller RedCat 61. Mar 8, 2019 · William Optics 2019 Zenithstar 81 - posted in Refractors : I swear this wasnt on their site just yesterday. 8x Flattener here. William Optics ZenithStar 81 Doublet APO f/6. Jul 10, 2025 · Like 1 Insightful Engaging AstroCapture325 Topic starter William Optics ZenithStar 81 / ZS81 • ZWO ASI533MM Pro • ZWO AM5N Jul 10, 2025 The William Optics Zenithstar 81 WIFD is a game-changing new two element apochromatic refractor featuring a patented internal focus design. ly The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. ly/43kMM5sHope you enjoyed this review of the WO GT81 WIFD, a very interesting William Optics Zenithstar 81 APO with Reducer/Flattner (Specify Color) Home / William Optics Zenithstar 81 APO with Reducer/Flattner (Specify Color) Specify Color: * $1,030. Back Focus Adjustment Guide Feb 17, 2022 · Learn about the range of refractor telescopes and wide-field imaging lenses by William Optics, along with user reviews, current inventory and more. Used twice Includes case. ly/38eiuqp Telescope: William Optics Zenithstar 81 APO - https://bit. Its W-interNAL focuser is also compatible with EAF. WIFD. Zenithstar 81 WIFD APO鏡筒 新型WIFD搭載 ウィリアムオプティクス社 Z81mm f6. 90 Oct 12, 2025 · ZenithStar 73 III ZenithStar 80 FD ZenithStar 80 II ED ZenithStar 81 ZenithStar 81 WIFD ZenithStar 103 ZenithStar 110 The William Optics ZenithStar 81 mm aperture Doublet APO Refactor is an extremely versatile telescope ideal for both astrophotography and general photography. Its 559mm diameter and 81mm aperture are both suitable for shooting with a wide range of cameras. 9 Doublet ED APO Refractor Telescope for sale in the UK at the best price⚡️. 9 imaging APO - Innovative Bahtinov Mask Cover (Patented) included!! For details and more photos of the telescope, flattener, and guidescope, please see the individual item links above. This advanced apochromatic refractor is engineered with a premium air-spaced doublet lens that incorporates Ohara FPL-53 ED glass to produce exceptionally clear and vivid i The Largest Telescope Distributor on Long Island, NY You can find Astronomical cameras(CCD & CMOS) William Optics, Explore Scientific, Celestron, and Sharpstar Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps optics perfectly aligned, even with heavy cameras. 1 mm adjust and ZWO EFW 2” filter Optolong Selling a ZenithStar 81 APO Doublet Refractor telescope complete with 6AIII Field Flattener / 0. High quality and fast delivery⚡️. Enhance your viewing with optional accessories like the Flat6aIII, a 0. 00 USD $898. Also possible to buy together with ZWO EAF, Williams Optics Guide Scope, and تلسکوپ شکستی 81 میلیمتری با فاصله کانونی 559 میلیمتر سری «زنیت استار» Zenithstar ویژه عکاسی نجومی طراحی اُپتیکی آپوکرومات دابلت Doublet Apochromat کیفیت بسیار بالای اُپتیکی در ابعاد کوچک و مناسب جهت حمل و نقل بسیار آسان جنس شیشه‌ها ZWO AM5 with William Optics 81 Zenithstar Apo Telescope 5. I have a Canon 5DIV, a Canon T3i (600D) and a Fuji XT-2. William Optics ZenithStar 103mm f/6. The Home William Optics Zenithstar 81 - USED Click to expand Tap to zoom William Optics Zenithstar 81" doublet PLUS accessories. 9 apochromatic refractor features an air-spaced multicoated doublet objective lens and the premium mechanics and finish that’s typical of William Optics scopes. William Optics William Optics designs and manufactures high-quality telescopes and accessories at an affordable price. William Optics Zenithstar 81 refractor Daystar Quark H-Alpha Filter daystar Energy Rejection Filter Televue Solar Searcher Finder Equipment used in this video: Mount: EQ6-R Pro - https://bit. Unveil the mysteries of the night sky with the William Optics Gran Turismo 81 WIFD, a superb refractor telescope designed for discerning astronomers who demand high-quality optics and robust build quality. 9 Step into a world of precision astronomy with the William Optics ZenithStar 73 III, the ultimate tool for avid sky watchers and astrophotographers. Premium, fully multi-coated optics deliver high-resolution, high-contrast images virtually free of false colour. Description Explore the universe with the William Optics ZenithStar 81 WIFD, a premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). 8x Focal Reducer & Field Flattener you can unlock flat field and fast images from some of these striking scopes! View and Download William Optics ZENITHSTAR 81 manual online. $843. This scope is a doublet and utilizes FPL-53 glass manufactured by O'Hara in Japan. 95 Free shipping William Optics Apochromatic refractor AP 156/1217 Fluorostar Gray OTA $ 9,800. 95 Free shipping An Improved APO Doublet Refractor from William Optics! The ZenithStar 81 APO WIFD is a choice refractor for both beginners and seasoned astrophotographers. This design effectively eliminates tube tilt issues caused by the weight of cameras and accessories. The William Optics WIFD GT81 81mm f/5. Building on the proven performance of its predecessor, the ZenithStar 81 APO now features the William Optics signature Internal Focus Design (WIFD). 8x reducer for broader celestial views, and the 50mm Uniguider for improved tracking accuracy during long exposures. The telescope is lightweight, weighing only 6. The William Optics Zenithstar 81 mm apochromatic lens telescope is extremely versatile, suitable for both star photography and nature photography. I've been trying to get the right answer here but struggling. 9 2枚玉FPL53アポクロマート屈折鏡筒です WO社独特の美しい鏡筒は非常に高級感があります 造りは鏡筒外観のCNC加工ホワイトパウダー仕上げ、内部艶消し及びバッフルに至る迷光処理まで全く手抜きがありません WIFD 新型フォー The William Optics Zenithstar 73 f/5. The William Optics R&P33 Focuser is a premium dual-speed focuser designed for 12-16" WO and GSO RC telescopes. William Optics ZenithStar 81 mm f/6. The William Optics ZenithStar 81 is a high-quality ED doublet refractor that balances affordability and performance, offering sharp wide-field imaging with solid mechanics, though it’s heavier and slower than its smaller siblings. Elevate your stargazing experience with our cutting-edge astr Jul 20, 2020 · William Opticsz Zenithstar 81 - Mounting ZWO EAF? - posted in Refractors : After having my new AP right fully functional (guiding was the last step) this weekend, I looked to add the ZWO EAF that I had gotten. 9 Apo Refractor OTA features a revolutionary new internal focuser that prevents sensor tilt. This innovative and revolutionary design combines a precision (Patented) internal focusing mechanism with the highest quality optics available, providing the ultimate Apochromatic refractor for astrophotography. ly Precision Petzval Optics Innovative Petzval optics in the William Optics Redcat series provide sharp, high-contrast images with minimal chromatic aberration. 00 USD Fluorostar 91 $1,714. 00 USD Zenithstar 81 WIFD $856. Featuring ultra-smooth fine focus control and high load-bearing capacity, it ensures precise and reliable focusing. The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. The William Optics ZenithStar 81 WIFD is a premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). Mount details are provided below. This exquisite telescope is part of our renowned Gran Turismo series, known for combining exceptional performance Explore the universe with the William Optics ZenithStar 81 WIFD, a premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). The William Optics Zenithstar 81 APO features air-spaced ED doublet optics with an Ohara FPL-53 glass element in a robust CNC-machined lens cell. Are the Petzval optics and WIFD focuser worth the extra money? I’ll let you decide. The WIFD series has been designed from the ground up to support the latest large and heavy high-resolution cooled cameras and accessories. If you are looking for Aug 16, 2022 · BACKFOCUS--ZWO 533MC PRO +ZWO 2" EFW+William Optics Zenithstar 81 APO Refractor Package with 0. New condition. Please note that the telescope OTA Save 12% [Refurbished] Cat 51 WIFD $699. The example images shared on this page should give you a good idea of what you can expect in terms of astrophotography with this compact refractor. 00 ready for shipping in 3-5 weeks William Optics Apochromatic refractor AP 71/350 RedCat 71 OTA This Zenithstar 81 APO refracting telescope is a great addition to the ranks of refracting telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction, a great addition to the ranks of telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction. William Optics has a nice package on sale for the Zenithstar which includes flattener and guide scope. 8x Reducer / Adjustable Field Flattener 6AIII for GT71, GT81, Z81 & Z103 Telescopes - Space Gray May 28, 2022 · William Optics Z81 & Orion Flattener Review by Joey | May 28, 2022 | Technical Monkey | 7 Comments Explore the universe with precision-crafted optics from William Optics. A close crop of the Lagoon Nebulae in The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. William Optics ZenithStar 81 / ZS81 is an equipment item of class Telescope or lens on AstroBin equipment database. Im trying to make up my mind between the William Optics Zenithstar 73mm APO (430mm f/5. Order William Optics products at High Point Scientific today! The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. The time is now 12:09 PM. Don't have an Astromart account? Click here to create one Selling due to a change of circumstance; purchased in early April. Versatile f/6. Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps opti Purchase all your William Optics telescopes and telescope accessories at High Point Scientific. ZenithStar 81 Doublet Apochromatic Refractor The William Optics ZenithStar 81 is an extremely well crafted and versatile refractor, an ideal instrument for deep sky imaging with DSLRs or dedicated astronomy cameras with APS-C and full-frame sensors. Discover an unparalleled range of Refractor telescopes, binoculars, digital camera adapter lenses, eyepieces, diagonals, and accessories designed for enthusiasts and professionals alike. The ZenithStar series from William Optics consists of compact but very high quality apochromats, which are ideal for use with a DSLR camera. The focuser includes a camera angle rotator with an M92 thread for optional accessories. The air-mediated 81 millimeter lens tube uses high-quality FPL-53 glass for a clear image and sharp colors Match your telescope model with the corresponding flattener in the table below. Also possible to buy together with ZWO EAF, Williams Optics Guide Scope, and تلسکوپ شکستی 81 میلیمتری با فاصله کانونی 559 میلیمتر سری «زنیت استار» Zenithstar ویژه عکاسی نجومی طراحی اُپتیکی آپوکرومات دابلت Doublet Apochromat کیفیت بسیار بالای اُپتیکی در ابعاد کوچک و مناسب جهت حمل و نقل بسیار آسان جنس شیشه‌ها The William Optics’ ZenithStar range consists of compact yet very high-quality apochromats which are ideally suited for use with a DSLR camera. $229. I am looking for a grab and go set-up to cruise wide field views, doubles, planets and bright deep sky (Messier targets or similar). Will this upgrade improve views and pictures? Unleash your passion for the cosmos with the compact and powerful William Optics ZenithStar 61 II APO Refractor. 00 USD Save 20% [Refurbished] Zenithstar 61 II $399. 9. A William Optics Zenithstar 81mm refractor in excellent condition. The William Optics ZenithStar 81 APO Telescope is a high quality Apochromatic Imaging and visual use telescope with an aperture of 81 mm and a focal length of 559 mm or an f-ratio of f/6. FREE soft carrying bag and Cyclops Optics' exclusive screw smoothing service to all William Optics telescopes William Optics Red ZenithStar 81 APO Doublet Refractor This 81mm ZenithStar APO refractor is a great addition to the ranks of telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction. Feel free to make a contribution! Learn more. ZENITHSTAR 81 telescope pdf manual download. Don't have an Astromart account? Click here to create one Selling the first telescope I have ever owned. 9) and the 81mm APO (559mm f/6. 9 Apochromat - Gold The ZenithStar series from William Optics consists of compact, but very high quality apochromats, which are ideal for use with a DSLR camera. With an objective lens using high-quality FPL-53 ED glass, the Z73 APO is a superb deep-sky imaging performer. 8, are you also using any spacers? What should the correct backfocus be? I have: Zenithstar 81 + 6AIII Flattener/Focal REducer x0. Featuring top-notch Ohara FPL-53 ED glass, this telescope delivers clear, high-contrast images with minimal color aberration. 9). 00 USD Save 30% Fluorostar 156 Zenithstar Zenithstar 61 II Zenithstar 81 WIFD Binocular Cat Eyes Binocular Accessories Introducing the WILLIAM OPTICS Internal Focus Design (WIFD) Apochromatic Series. Oct 18, 2022 · WO Zenithstar 73mm APO vs 81mm APO - posted in Refractors : Hello all, I am seeking some advice. Please Log In to view the details for this classified ad. 9 Mounting Rings Visual Back 210 mm Dual sided Dovetail Bar The NEW William Optics Zenithstar 81 APO features an air-spaced doublet lens with an Ohara FPL-53 ED glass element in a CNC machined ultra high precision lens cell with fully multi-coated optics for high resolution, high contrast images virtually free of false-colour. 8x Reducer. Not only does The William Optics ZenithStar 81 is an extremely well crafted and versatile refractor, an ideal instrument for deep sky imaging with DSLRs or dedicated astronomy cameras with APS-C and full-frame sensors. 9 focal ra The Gran Turismo, Fluorostar, and ZenithStar refractor lines from William Optics feature elegant imaging potential from their premium triplet and doublet optical designs, and with the William Optics Adjustable 0. I am open to other suggestions though. Compare William Optics ZenithStar 81 Refractor prices and availability. Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps optics perfectly aligned, even with heavy cameras Match your telescope model with the corresponding flattener in the table below. From the RedCat to the ZenithStar series and beyond, you'll find amazing optical quality and awesome fit and finish when you shop William Optics telescopes at OPT. WO Zenithstar 81mm f/5. With these, you can capture excellent wide-angle images of large star fields. Add a T mount for your DSLR camera here. Aug 12, 2020 · Upgrade from William Optics Megrez 72FD to Zenithstar 81 - posted in Refractors : I am planning to upgrade from William Optics Megrez 72FD F/6 to 2019 Zenithstar 81 F/6. WILLIAM OPTICS ZENITHSTAR 81 WIFD Explore the universe with the William Optics ZenithStar 81 WIFD, a premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). Aug 20, 2025 · Support Product Manual Telescopes ZenithStar 81 Updated Aug 20, 2025 • by WO Team 1 min read Explore the universe with the William Optics ZenithStar 81 WIFD, a premium refractor telescope that offers unparalleled optical precision with its innovative Internal Focus Design (WIFD). The William Optics ZenithStar 81 is an extremely well crafted and versatile refractor, an ideal instrument for deep sky imaging with DSLRs or dedicated astronomy cameras with APS-C and full-frame sensors. Jun 30, 2020 · All times are GMT +10. 60 save $44. 00 USD Zenithstar 61 II $466. 8x Reducer / Flattener it is a very simple process to do. ly/31Tw5jV Flattener: William Optics 6aiii - https://bit. The objective features Ohara FPL-53 ED glass for superb control of false color and sharp, high-contrast images. The 10:1 dual speed focuser is smooth and strong. Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps optics perfectly aligned, even with heavy cameras. It was the scope that got me into astrophotography, and it taught me a lot. For those that have the Zenithstar 81 with 6AIII Focal Reducer x0. Perfect for astrophotography and visual observations, it features a patented internal focusing mechanism that keeps optics perfectly aligned, even with heavy cameras Aug 26, 2025 · To address the optical path shift caused by temperature variations during imaging, William Optics has designed most of our flatteners with an adjustable back focus mechanism. Shipping included. Add the FLAT6AIII 0. 00 USD Gran-Turismo 71 $856. Oct 30, 2020 · Skyguider Pro with William Optics ZenithStar 81 APO - posted in Mounts: The Skyguider Pro works fine even with the William Optics ZenithStar 81 APO telescope, provided that care is invested in (1) securing the way the telescope is attached to the DEC plate, and (2) balancing the scope and accessories carefully. The William Optics ZenithStar 81 mm aperture Doublet APO Refactor is an extremely versatile telescope ideal for both astrophotography and general photography. This Zenithstar 81 APO refracting telescope is a great addition to the ranks of refracting telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction, a great addition to the ranks of telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction. The William Optics RedCat 61 is Available at Agena Astro. So follow along Apr 3, 2020 · Page 1 of 2 - WO Zenithstar 81 or an AT 102ED Opinions? - posted in Refractors : Hi Everyone - would love your input on getting back into the hobby. 00 Add to cart Jun 17, 2021 · The NEW William Optics Zenithstar 73 APO III features an air-spaced doublet lens with fully multi-coated optics and an Ohara FPL-53 ED glass element for sharp, high-contrast images virtually free of false colour. ZenithStar 81 Doublet Apochromatic Refractor. Contains all items included with original shipment, all in excellent condition: Softcase with shoulder strap Optical tube assembly (clean, no scratches, chipped paint, or stains) , 559mm focal length at f/6. 10 save $99. 00 USD $498. In some cases, the back focus distance may be long The William Optics Internal Focus Design (WIFD) features a patented mechanism, marking a revolutionary chapter in telescope design and functionality. Fluorostar 156 Zenithstar Zenithstar 61 II Zenithstar 81 WIFD Binocular Cat Eyes Binocular Accessories Precision Petzval Optics Innovative Petzval optics in the William Optics Redcat series provide sharp, high-contrast images with minimal chromatic aberration. yocuk bmb vgtr dloxeoaj ccgdu yqwgwcql rrziwyr chpx klomca kie kqcvjj zbatto yjxsj pjlnp xxr