00. 7" Rack & Pinion style and can be rotated 360-degrees. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) $67. The William Optics FLT156 APO. Adjustable Dew Shield. 8 Field. New Hot. xxorza @xxorza_93471 Follow Following. 9 Imaging APO Triplet Refractor FPL-53 ProAstroz. Add to Cart. The STM coatings and superb quality provide excellent optical performance and unmatched value. The confused or confusing information that WO puts out re 68III backfocus is unhelpful as has been noted. 4mm image circle makes it a perfect match for full-frame sensors. The FLT 91 is an Apochromatic refractor with a focal length of 540 mm and an aperture of f/5. Quick View. 8 triplet on its website. 575kg (OTA withThe William Optics line of refractors offers high quality optics and fast focal ratios in a lightweight, portable telescope. Feather Touch® 3. Quick view Choose Options. Coupled with my ZWO ASI1600 MM Pro, the field of view is 2. 2019 All New Slide-base 50mm UniGuide Scope (with a Unique 1. 3 inch dual speed focuser. The Flat6AIII features adjustable spacing for use with a range of cameras and imaging systems. 00. 1 Review . Be the first to review this product. RedCat 71 APO 350mm f/4. 00. Good condition with some slight signs of use as you would expect - complete. The lens cell is a TMB design. 00. New William Optics Flattener 68III . Products Telescopes Fluorostar series Fluorostar series 5 Items Sort By (Pre Order)New Fluorostar 156 (With Feather Touch 3. I have an A&M 110mm which is the WO 110 FLT with TMB optics and a carbon fiber tube. The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 00. Fluorostar 91 APO quantity. You're reviewing: 【Refurbished】Fluorostar 91 APO-Space Grey. Add to Cart. Wish ListCompare. 2 kg, length 680 mm with dew shield fully retracted, 850 mm with dew shield fully extended, image circle 43 mm (with separate field flattener). 9. Regular price $4,378 1 in stock View. Summary. Details and Features William Optics' newly designed handlebar, made with anodizing by CNC, gives a nice, strong looking feel to this scope. 5 APO Triplet Refractor - Red. As some know - I am currently looking for a nice refractor (now to sit beside my 150PDS as opposed to replacing it) and will be used primarily for imaging like the 150. For astrophotography, the large image circle provides illumination, even for full-frame cameras. We can't find products matching the selection. 9 Weight: 3. cþl 22mm Weight : 9. Most relevant Top fan. The reducing factor of this field flattener is 0. Basic Information: Telescope: William Optics FLT 91 with FLAT 6AIII reducer. 3" Rack & Pinion Focuser - Space Grey Version Providing the supreme visual and photographic performance astronomers expect from a medium sized telescope, the William Optics Fluorostar 91 f/5. Add to Cart. $656. Add to Cart. 9 Focuser Dual Speed 3. 9 Focuser : 3. Because the Fluorostar 110 is wellSpecial Edition FLAT6AIII Adjustable Reducer / Flattener for William Optics Fluorostar FLT 91 Telescopes. 8 focal reducer, which brings the FLT 91 to a focal length of 432 mm at f/4. With the proper T-Mount and T-ring, users will have a functional imaging setup!New for 2021 - The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 6lbs) including tube rings and dovetail plate. £1,975. New for 2021 - William Optics Fluorostar FLT 91 Apochromatic Triplet Refractor!! The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. – Telescope Optical Design: Refractor. → Equipment Discussions. 9. Refractor Telescope, Astrophotography, Telescopes. [This Product is Excluded from Coupon/Promotion] The Fluorostar 120 is a Three Element Designed APO refractor. Glass is the same, but you can pay extra for the report on the WO. Add to Wish List. 90 Joe Matthews #. The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. 0 TELESCOPE. The FLT-156APO has a focal length of 1228mm putting focal ratio of F7. 818-347-2270. New William Optics Flattener. 00. A case is available from WO at $500, but I purchased a custom case from Case Club for just over $300. 00. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. $293. 1 81bs / 4. 9 and reduces to f/4. 8 These are premium instruments primarily aimed at astrophotographers, but they can also be used for visual observations. 3" R&P Focuser Image Circle : >43mm Retracted Length :. William Optics Fluorostar 91 APO - Gold. William Optics. 00 £299. William Optics Fluorostar 91 APO - Red (2) $2,697. Contact Information. Confusing, I know, but that is marketing for you. the content will be. +Soft Carrying Case. Provides good illumination and a flat field across 97% of a full frame sensor field of view. Reviews. 7" R & P Focuser. More Info . $92. 8X. No internal reflections noted. 3" Rack & Pinion; Color: Red; Lens Material: FPL-53; Strehl Ratio: 0. $2,697. This particular version has an adapter for use with the Fluorostar 91 and 120. Wish List. Hot. Here are some recent threads on this telescope:The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. William Optics. Case Weight. Astronomers desirous of superb visual and photographic intermediate sized refractor performance will much appreciate the William Optics 91 mm f/5. William Optics. 3. WILLIAM OPTICS FLT 110 APO f/7. New William Optics Flattener 68III . 【DEMO】Binoviewer Complete Package. 00 ₹ 189,731. 00. 9 Petzval Refracting Telescope. Add to Cart. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. 00. Full manufacturers warranty. Recent Reviews. View as Grid List. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. As low as $171. Add to Cart. 【Refurbished】RedCat 51 Ix APO 250mm f/4. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. Fluorostar 91 APO Triplet Refractor. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. Help with focusing on a new setup - posted in Experienced Deep Sky Imaging: Hello! I just received a new William Optics telescope and tried it for the first time. 5 ~ f/8 APO that has 2" barrel opener. Submit Review. Buy another brand of. William Optics Fluorostar FLT 91 Apochromatic Refractor - Checked & Tuned (3) £1,989. Add to Cart. William Optics Fluorostar 132 - Space Grey. I found a great. This Fluorostar 156 APO OTA can also be used with an interchangable camera mounting system, with various T-mounts for cameras (not included). New William Optics Flattener 68III . - Features a top-quality triplet f/7 air-spaced objective. A few days later I purchased a WO 1. The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. Prices are confirmed for all William Optics products in stock!. 00. The three-element optical design features a 91mm aperture using FPL-53 glass. Posted 18 March 2021 - 09:36 AM. AstroMichael. 1 65kg (OTA only) 1 2. Lens Type Apochromatic Triplet Prime LensDESCRIPTION The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 4mm This William Optics 2" Field Flattener and Reducer has been designed to optimize the flat-field iTak's have a reputation of, for the most part almost amateur perfect optics and consistently so. Page 9 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : I was close pushing an ORDER button on this scope but now I started to hesitate. Mount: EQ6R-Pro. Open Monday through Friday 9-6pm PST and Saturday 10-4pm PST. William Optics. Fluorostar series; Gran Turismo series New; ZenithStar series; Guider series New; Finder series; Binoculars; Eye Pieces. Toll-Free: +1-800-504-5897 Help Center Check Order Status. 0 Items - $0. William Optics manufactures Refractor telescopes, binoculars, digital camera adapter lenses for telescopes, eyepieces, diagonals and other accessories. FLT-98; 3. I am very happy with my WO FLT 132 and I think that the WO focuser is a extremely good unit. From Our Price: $3,298. Check items to add to the cart or select all. $275. Add to Cart. Gran Turismo 71 APO. Both set ups look attractive and suitable to my needs. I’m expecting a new Flt 91 to arrive. The carbon fiber version of the. The W-O web site for the Flat 68 iii shows the back focus for the FLT91 as 75 mm, but also indicates the adjustment distance for a DSLR or mirrorless camera as 5 mm. Image 1. Hot. 3-inch Rack and Pinion focuser featuring a turn/click to lock eyepiece holder, a new central lens element and new steel lens cell. 55 AstroPhysics Starfire new in 1989. Saddle handle bar: Newly designed. View full description Download Manual 1 year warranty A soft carry case comes standard with the William Optics Fluorostar 91. $1,299. Add to Cart. 9. Qty. Page 9 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : I was close pushing an ORDER button on this scope but now I started to hesitate. William Optics FLT Fluorostar 120 f/6. $6,049. William Optics RedCat 51. New for 2021 - William Optics Fluorostar / FLT 91. It was useful enough to get me to sign up to CN. x0. Here is my imaging train: William Optics Fluorostar 91 FPL53 Triplet APO Refractor William Optics FLAT6AIII x0. 6 Refractor with All-New 2014 model 3. New for 2021 - William Optics Fluorostar / FLT 91. William Optics FLT 156 - posted in Refractors : For those who may be interested, William Optics has just listed its Fluorostar 156 f/7. I started with the initial distance recommendations from the product website and I found that I had. With a quadruplet Petzval optical design. Lens. This is a NEW listing. Add 30 Minute Product Setup Appointment with Gear Expert to your order. Available from Ontario Telescope and Accessories in Canada. More Info . 105Kg. 9kg (8. Add to Cart. Add to Cart. $99. Hope that WO reads related threads here and strive to improve. 8 focal reducer, which brings the FLT 91 to a focal length of 432 mm at f/4. 5 ratio refactors, including the new FLT91 telescope. However I have not found many reviews or youtube video reviews about this particular scope. View full description Download Manual 1 year warrantyThe FRA500 is slightly lighter and slightly smaller in length. William Optics Fluorostar 91 / FLT91 / William Optics FLT Dew Shield; William Optics FLT Dew Shield. 38 comments. Just ordered a Space Gray William Optics FLT 91 Fluoro Star 91mm f/5. 【Refurbished】【Like NEW】 CAT71-White Limited edition APO 350mm f/4. 3" R&P Focuser Color Red Space grey Lens Material View full description Download Manual 1 year warranty We would like to show you a description here but the site won’t allow us. 00. Used for product review. Our #: T-WO-A-F120-RP33. Customer reviews. Add to Cart. Celestron CGEM II 800 HD. Hope that WO reads related threads here and strive to improve. Review. Fluorostar 91. Add to Cart. Add to Cart. 0 mm in spacers and still the same problem. Details. 00. Here, I will review the William Optics Zenithstar 61. 75 Flattener Adapter + $49. $1,568. With a 540mm focal length and f/5. Mount for ZWO EAF (electronic auto focuser) onto WIlliam Optics Fluorostar 91 . 7. William Optics FLT120 - 120 mm f/6. FLT-98 is equipped with the beefy 3. Refactor Telescope: William Optics FLT120. Related Products. Guide Star 61 (Soft Carry Case included) As low as $438. Unit price / per . I would really appreciate any comments that my help with making choice from those that have had some experience with either scope or either. The scope also has a graduated scale for perfect camera alignment. $28. More On The Way. Out of stock. Lens Type Apochromatic Triplet Prime Lens Focal Length 540mm Diameter 91mm Aperture f/5. 00. 360 deg. Australia's leading William Optics authorised factory direct importer!. Using three elements made of high-end fully coated glass like FPL-53 virtually removes chromatic aberration and produces images that are sharp and full of contrast. William Optics Fluorostar 91 Triplet APO Refractor Technical Specifications. Abuse reports are anonymous and the content's owner will not be. William Optics Facebook page just says it is coming soon and provided a trailer (haha) with a nice look at it. I wanted to create a thread to contain all information, tips, guides etc. Add to Cart. William Optics Flat6AIII 0. 9 and a focal length of 540mm. Summary. SKU. The STM-coatings and superb quality provide excellent optical performance and unmatched value. Summary. As low as $933. Despite being only a little longer, that diameter and extra glass means this is much heavier than my Z73. The STM coatings and superb quality provide excellent optical performance and unmatched value. William Optics Corp. Sort By. Telescope: William Optics FLT 120 (780mm at F/6. Agena Website Offer. In Stock. 00. x0. Another great choice would be the Stellarvue SVX-130T, but it is ~2x the price of the Esprit. From what I can understand/translate, it seems that (aside from the objective diameter), the Takahashi TOA-130 feels bigger. Page 4 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : Seems like there is a pretty large shipping fee to. 00. Was wondering what people thought of them. Having two flatteners/focal reducers is like having two telescopes with different focal lengths. Out of stock. William Optics D-ROTO-A2-SCT2F(SCT2 inch RotoLock adapter (2 inch -SCT2 inch)) $99. 8x. Types of William Optics: RedCat 51 Refractor Telescope. Back In Stock!. Page 5 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : I have the Flat6AIII on my GT71, M63 focuser thread, and the 68III on my FLT 132, M92 focuser thread. Cloudy Nights. Disassemble the telescope: If you have to store the telescope for a long time, it is best to disassemble it. Add to Cart. Check items to add to the cart or select all. The William Optics Flat6AIII is an apochromatic triplet 0. Ex Demo Ex-demo. Rated 0 out of 5. (Best Buy) Red dot finder Kit with Vixen Style Mounting Base. New Fluorostar 156 (With Feather Touch 3. William Optics has a reputation for mechanically well built refractors and I would have to say the FLT-98 is no exception. See shipping choices & costs. 2 inch Durabright CF Plate. Regular price $933 1 in stock. William Optics Fluorostar 91 / FLT91 / New scope and flattener/reducer; New scope and flattener/reducer. Write Your Own Review. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. New. 00 HK. 8. Write a Review. 9. The FRA is also a natural f/5. 0 Flattener Adapter + $49. New for 2021 - William Optics Fluorostar / FLT 91. Scope is claimed to be near perfect and comes with WO case and carry handle. 6. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. $865. This flattener contains a 63 mm opening on one end that threads into the telescope, and an M48x0. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. Complete and in great condition. Back Focus (WO Fluorostar 91 with FLAT6AIII Flattener and Fuji XT3) - posted in Beginning Deep Sky Imaging: Hi, I am somewhat new to astrophotography (this is my 1st post here) and struggling to understand how to achieve the right back focus, to calculate for the things in my imaging train that need to be accounted for. As winter approaches, we imagine the FLT 91 would be an excellent deep-sky workhorse, and a reliable option that won’t let its user down during those clear and long dark nights. Quick view Choose Options. My first light with the FLT91! Processing is still a challenge, but here is my FIRST narrowband image nonetheless! (I need more O3 and S2 for sure) Stay tune. 00. William Optics Fluorostar 91 FPL53 Triplet APO Refractor with 3. Add to Cart. Review. was founded in Taiwann for the purpose of making astronomical telescopes for use by the more demanding amateur astronomer and birder. (No reviews yet) Write a Review Related Products; Quick view Choose Options. All New Slide-base UniGuide 50mm Scope . 78%. 00. Maybe its just me but I feel like this is too close to the 81mm GT. Shipping will be via. 3" R&P Focuser Color Red Space grey Lens Material Hello everyone!In this video I will be going over the William Optics FLT91. Summary. 00. Follow us: Join our mailing list: Signup. 00. ♦ Dual-speed rack and pinion focuser with "Rotolock" clamping. 00 Add to Basket. Made with CNC anodizing. William Optics New FLT 132 Fluorostar 132mm f/6. 9 APO (NEW) HK$4,990. The STM-coatings and superb quality provide excellent optical performance and unmatched value. Shopping with us. 72 with the recommended 'William Optics Flattener Reducer 6' at 0. The STM coatings and superb quality provide excellent optical performance and unmatched value. 1 Review . More Information. RedCat 71 APO 350mm f/4. To ensure the FLT91 Fluorostar is functional with a wide range of equipment, William Optics has designed it to be compatible Canon EF and RF, Nikon F and Z, Sony E, Pentax K, Micro 4/3, and Fuji X T-Mounts. January 30, 2023 by Patrick. Open box. Quick view Compare Choose Options. 8 Field Flattener for Fluorostar 91. $43. Specifications. The OTA is robust and well baffled. The cooled CMOS camera Jack uses collects high-quality image data with much less noise than a DSLR/Mirrorless would. New William Optics Flattener 68III . The telescope must have at least 4. View full description Download Manual 1 year warrantyNew Fluorostar 132 (Innovative Bahtinov Mask Cover) ₹ 393,103. New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included). The FLT 91 is the perfect apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. However, I always use it with the 0. 5mm and 21mm extension that came with the camera. 8 (at f/5. 【Refurbished】RedCat 51 Ix APO 250mm f/4. Disassemble the telescope: If you have to store the telescope for a long time, it is best to disassemble it. Abuse reports are anonymous and the content's owner will not be notified. 9, 132mm at f/7, and 156mm at f/7. Built with M63 threads on the telescope side. 6 and can be reduced with a reducer to f/3. The build quality is much better on the William and the color correction on the Stellarvue with no name glass is not the best. 0 reviews . Add to Cart. Main Equipment, not all are listed here. Anyone having experience with either or both, your observations and knowledge would be appropriated. Like you, I wanted a faster and wider field scope. This was my first time imaging or processing SH2-91, it was a fun project and a good learning opportunity. net.