Average Rating (3 Reviews): Rating (max 5): I bought the William Optics Fluorostar FLT 91 Apochromatic Refractor recently (March 2022) along with the William Optics Adjustable Flat6A III 0. 00 Color Add to. T-FLT-91-GD-Refurbished. . 00. This telescope was released in the UK circa September 2021 so is pr. STAR 91 Ml 21 SPECIFICATION M92 M92 M83 Focal Length : 540mm Diameter : 91 mm Aperture : f/ 5. 5x TV Powermate - posted in Beginning Deep Sky Imaging: I have heard William Optics FLT 91 Fluorostar is one of the best optic refractors of its league. The AM5 can handle the William Optics FLT 120. The three-element optical design features a 91mm aperture using FPL-53 glass. Fluorostar 91 SKU: T-FLT-91RD-RP33 . 00 Add to Basket. Regular price $1,499 10+ In Stock View. 4”), compact enough to qualify as carry-on luggage with most airlines. Lens. P-FLAT7A. $558. New Fluorostar 132 (Innovative Bahtinov Mask Cover (Patented) included) $4,378. 72. Anyone have experience with William Optics FLT120 f6. My Account. Review. Available from Ontario Telescope and Accessories in Canada. Sort By. New for 2021 - William Optics Fluorostar / FLT 91. Add to Cart. I also received the WO FLAT 6A III x0. There are no. Wish List Compare. All Instruction Manuals for William Optics products are available for online viewing or download as PDF files. f/5. Chromatic and spherical aberrations are well controlled. Both set ups look attractive and suitable to my needs. 25 inch RotoLock) All new, a unique, RotoLock high-quality fully multi coated WO 50mm f/4 Guiding scope that fits. Full manufacturers warranty. The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. Mount for ZWO EAF (electronic auto focuser) onto WIlliam Optics Fluorostar 91 . 2019 All New Adjustable Flat6AIII (T-mount not included) 2019 All New Adjustable Flat6AIll (T-mount not included) PRODUCT DESCRIPTION: Field flattener / X0. I always wanted to have one of those great looking William Optics 2-inch 90-deg Erecting Prism Diagonal and last year I really lucked out and was able to buy one in absolutely new, pristine condition at eBay (USA). 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. William Optics Fluorostar 132 - Space Grey. $656. To see how to install the Flat6Aiii including the correct back focus go to the following link:Questions. 7 flattener) triplet air spaces (FPL53 Design). For the William Optics . ♦ three-element optical design using FPL53 glass. The doublet objective uses FPL53 glass (Image 1. 9. Hope that WO reads related threads here and strive to improve. 3" R&P Focuser Color Red Space grey Lens MaterialHello everyone!In this video I will be going over the William Optics FLT91. The Flat6AIII features adjustable spacing for use with a range of cameras and imaging systems. * Your Name: * Your Email Address: *. Hope that WO reads related threads here and strive to improve. 00. High-quality Soft Case. Page 1 of 2 - My Fluorostar 91 has arrived - posted in Refractors : My Fluorostar 91 (FLT 91) just arrived. 9 Triplet!!! Totally lucked out and found one in stock at one of the Telescope sites. Quick View. Diameter: 51mm Focal Length: 250mm Focal Ratio: f/4. William Optics Fluorostar 91; William Optics FLAT6AIII for FLT91; The basic numbers. I have therefore been looking at shorter wider. Write a Review. Add to Cart. Review. SKU WO-T-FLT-91GD-RP33 Original price CA$2,697. Add to Cart. 00. “Zach, thanks again!”I had the. Closed Sundays and major U. 2) Camera: ZWO ASI 2600mc Pro. 00. William Optics GT153 Triplet APO. 5mm and 21mm extension that came with the camera. 5 ratio refactors, including the new FLT91 telescope. Add to Cart. Comes with Standard 2 year warrantyOptical Performance The Fluorostar 132 is a three element designed APO refactor. リーズナブルで高い性能を保持したWilliamOpticsの屈折望遠鏡に新製品がラインナップされました。持ち運びにもちょうどいい高性能な9cmの屈折望遠鏡です。 WilliamOptics FLT-91APO／F5. -6. The store will not work correctly in the case when cookies are disabled. English en. 00. 3" R&P Focuser Color Red Space grey Lens Material So far, the stars are looking better and better as I back it out more. 95 FREE! Add Apertura Air Blower for Lens Cleaning to your order. As low as $171. 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. 25 inch DURA BRIGHT Dielectric Diagonal. 8. Adapters. You're reviewing:New Fluorostar 132 (Innovative Bahtinov Mask Cover (Patented) included) Nickname. Hope this is the correct place to ask the following question… The scope in question is located in Finland. $85. So, this comes down to the. 99. Log In; Register; Order Status; Order History;M42, William Optics FLT120. You're reviewing: Fluorostar 120. Agree with Pete, and therein lies the issue with William Optics. The new ones do not contain fluorite elements and I don’t know that older models ever did. William Optics Fluorostar 91 FPL53 Triplet APO Refractor with 3. 00. $1,299. 3" Rack & Pinion Focuser Astronomers desirous of superb visual and photographic intermediate. Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) $67. This accessory is a must-have for refractor astrophotography. FOA-60 Ortho Apochromatic Refractor. $656. The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. Palette in order: SHO, OSH, HSS, and HOO plus the rig itself. $2,299. Information; Reviews (0) Article number: P-FLAT6AIII-M92: Availability: More on the Way to us: Delivery time: More on the Way to Us: FLAT6AIII special edition for Fluorostar 91. Wish List Compare. 99 New---- Used; Celestron NexStar Evolution SCT Reflector Telescope. View full details. 5" Focuser) Nickname. 4mm image circle makes it a perfect match for full-frame sensors. The reducers always look undersized in comparison. Add to Wish List. RedCat 71 APO 350mm f/4. Summary. Page 1 of 2 - Askar FRA500 vs the WO FLT 91 - posted in Refractors : Looking at these two scopes. 4. Quick view Choose Options. 3" Rack & Pinion Focuser - Gold Version With a 3-element triplet design and FPL-53 glass, this William Optics 91 mm f/5. Add to Cart. 8 focal reducer, which brings the FLT 91 to a focal length of 432 mm at f/4. The STM coatings and superb quality provide excellent optical performance and unmatched value. 6. 00. Wish List Compare. The latest ZWO EAF came with everything I needed to install the focuser to my Fluorostar 91. The case is a nice, well made, padded soft side case. Price is $1850 shipped with no PayPal fees. 5 Truss tube Dobsonian; Celestron PowerSeeker 70AZ Telescope ($10 Scope) Orion. Write Your Own Review. FLT156. New William Optics Flattener 68III . Nickname. It is ideal for astrophotography. 3" R&P Focuser Image Circle : >43mm Retracted Length :. The three. 71. New William Optics FLT120mm f/6. William Optics. 00. New. 35″ of clearance for the draw tube to go inside. 77 degrees (see scope mounted, Version B). Out of stock. No more image shift. 00 My account / Register. An index has been included which includes links to the direct post for each topic in question. Add to Cart. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. $3,298. William Optics Fluorostar 91 — Combines a compact design with remarkable imaging capabilities. After nearly 16 years of owning and using apochromatic refractor telescope from Astro-Physics (128 Starfire, 105 Traveller, 130EDFS, 155EDFS), TMB (80mm, 105mm) and Takahashi (FS60-C, TOA130, FSQ106), I thought it was time to give a newbie on the. 9 Imaging APO Triplet Refractor FPL-53 - Australian Authorised dealer Add the FLAT6AIII 0. Add to Cart. 575kg (OTA with 2. Check items to add to the cart or select all. 3" R&P Focuser Image Circle : >43mm Retracted Length : 441 mm Extended Length : 51 Omm Dew Shield Circumference : 383mm Dew Shield Diameter . William Optics GT153 Triplet APO Refractor. Benny Sachdev. Like you, I wanted a faster and wider field scope. Z. Testing The William Optics FLT-98 APO Refractor - posted in Refractors : Today I received a new William Optics FLT-98 for testing. $399. This very elegant 2" reducer/field flattener has been designed to optimize the flat-f. Of these 3, my choice would be the Esprit 120. Reviews 1. ♦ 91 mm aperture, 540 mm focal length. 9 Focuser Dual Speed 3. The William Optics Fluorostar FLT 91 granted us a stunning suite of astro images to enjoy and is small and light enough to remain portable for travelling astronomers. Deutsch; Français; Espanol; Currency: USD. I was. Submit Review. The William Optics FLT 91 is the perfect apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. Related Products. 2 Reviews . The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. View full details. Out of stock. 03. New Hot. The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 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. 9, 132mm at f/7, and 156mm at f/7. Im excited. Details. The FLT 91 is an Apochromatic refractor with a focal length of 540 mm and an aperture of f/5. 00. 25" Diagonals & Erecting Prisms. In Stock. $2,494. $43. Related Products. I guess flats can work that out. 00. ZenithStar 73 III f/5. 5 ratio refactors. 5kg. Zenithstar 61II APO. The STM coatings and superb quality provide excellent optical performance and unmatched value. Wish. The back focus started at 60mm which is the required distance when using the Williams Optics FLT 91 with the FLAT6AIII, I have a filter in the image train so I added a 0. Write a Review. William Optics Fluorostar 91 Apochromat. Next session will see me adding a total of. Cameras: ZWO ASI 2600mm Pro and ZWO ASI 120mm-mini. I ordered a William Optics FLT 91 Fluorostar 91mm f/5. The FLT 91 is the perfect apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 5" Focuser) As low as $8,198. Specifications. Rated 0 out of 5. To see how to install the Flat6Aiii including the correct back focus go to the following link:The new William Optics Fluorostar FLT 91 is a three element air-spaced apochromatic refractor with a focal ratio of f/5. You may remember my review of the William Optics Zenithstar 61 APO, which also used this glass. 16%. Scope is claimed to be near perfect and comes with WO case and carry handle. x0. William Optics Fluorostar 91 / FLT91 / William Optics FLT Dew Shield; William Optics FLT Dew Shield. Its always a shame to take off the visual back on these. 99. I can only say that Esprit owners seem well satisfied and and the same is true of Willams Optics scope owners. 25" WA 1. 9kg (8. New for 2021 - William Optics Fluorostar / FLT 91. 9 Triplet Apo Refractor with Carry Case - Space Gray # T-FLT-91SG-RP33. Produced entirely with the best Ohara optical glasses. 2y. To see how to install the Flat6Aiii including the correct back focus go to the following link:new William Optics Fluorostar FLT 91 is a three element air-spaced apochromatic refractor with a focal ratio of f/5. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. William Optics WIFD Redcat 61 F/4. Z. The FLT-132 gathers 81% more light than the FLT-98 and about 35% higher in resolution. . William Optics Flat6AIII 0. Fluorostar 151 Triplet APO (Discontinued) $8,898. As low as $933. Our Price: $1,998. STAR 91 Ml 21 SPECIFICATION M92 M92 M83 Focal Length : 540mm Diameter : 91 mm Aperture : f/ 5. Page 20 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : Your saying your image train is OTA -> Flat68iii -> EFW -> 2600MM?. Customer reviews. 0 mm in spacers and still the same problem. Warning, the EAF and focuser shaft will. It is extra heavy-duty, making it durable. 9 APO + FREE International Shipping HK$17,380. The ultra-smooth, heavy-duty 3. ZenithStar 110 WILLIAM OPTICS USA Crafting the Earth's Finest Astronomical Instruments CONTACT US WILLIAM OPTICS USA Toll Free: +1-866-918-6888 (For USA only) Tel: +1-714-898-7989 Fax: +1-714-892-6067 web: e-mail: wo@william-optics. My ED120 focuser matches the performance of my. A-F151. 575kg (OTA withThe William Optics line of refractors offers high quality optics and fast focal ratios in a lightweight, portable telescope. x0. About WO. We plan to keep producing fine instruments both for the entry-level and. 5 and a focal length of 780mm. William Optics manufactures Refractor telescopes, binoculars, digital camera adapter lenses for telescopes, eyepieces, diagonals and other accessories. Add to Cart. Maybe its just me but I feel like this is too close to the 81mm GT. Description For FLT 91 ONLY! Special edition flattener/reducer with adapter for the Fluorostar 91 telescope. Flat6AIII special edition for FLT91. The lens cell is a TMB design. 3" RP: Yes:. That does not mean that it cannot be used visually, with an eyepiece, for the visual observer who wants the very best image. 00. Out of stock. New William Optics Flattener 68III . William Optics Fluorostar Series /. 3 apochromatic. The William Optics FLT 91 is the perfect apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 9. The scope was delivered in a box with the case and scope inside. Submit Review. ♦ Dual-speed rack and pinion focuser with "Rotolock" clamping. Download. 1) William Optics Fluorostar + CEM70G. 00. 5" FeatherTouch Focuser. 00. 徐達杉. Gran Turismo 71 f/5. 00. Compare Selected. Add to Cart. I have since added another 1. 0. SWAN 2" SWAN 1. Fully multi-coated 2-element unit was designed and produced by William Optics, the inner flattener lenses can be set at the optimum 66mm-86mm back focus by simple hand twist (Distance from flattener lens to. Both set ups look attractive and suitable to my needs. 00. Our #: T-WO-A-F120-RP33. 00 Maged #. 8x flattener/reducer with STM-coated Ohara lenses. 00. 00. Corporate. 4. As low as $171. $92. I assembled the rig with a Canon DSLR attached to the flattener via a 48mm t-ring. When you report abuse on some content on AstroBin, the content will be hidden until a moderator reviews it. 34 degrees X 1. 00. (No reviews yet) Write a Review. New William Optics Flattener 68III . Abuse reports are anonymous and the content's owner will not be. The 3. Complete and in great condition. 1mm from the. 9 Triplet Apo Refractor with Carry Case - Gold # T-FLT-91GD-RP33 Lens Type Apochromatic Triplet Prime Lens Focal Length 540mm Diameter 91mm Aperture f/5. AED 7,600. Zenithstar 81 APO Brand New 2019 Super ZenithStar 81 F6. You must be logged in to post a review. $378. William Optics Corp. William Optics New FLT 132 Fluorostar 132mm f/6. Rated 0 out of 5. Fluostar series (FLT) represents William Optics' top of the line apochromatic designed for astrophotography. 95+. William Optics Fluorostar 91 Triplet APO Refractor Technical Specifications. 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. SKU. Wish List Compare. I've had 3 William Optics scopes, all 3 had excellent, perfect working focusers (I'm visual only), and superior optics. More Information; Specification: Reviews. Related Products. Write Your Own Review. When you report abuse on some content on AstroBin, the content will be hidden until a moderator reviews it. The same is true for the FLT 132. The WO. As low as $171. 00. The cooled CMOS camera Jack uses collects high-quality image data with much less noise than a DSLR/Mirrorless would. 8x flattener hereAdd. 4mm, I used the 16. Select Options. 00. Designed with nearly Full frame chip-size DSLR cameras in mind. Submit Review. $1,598. 00. 1 81bs / 4. The William Optics Fluorostar 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. → Equipment Discussions. Case Dimensions. 9 and reduces to f/4. WO Flat 6AIII will provide good illumination and flat field across 97% of full frame sized. 9. Wish List Compare. +. It is ideal for astrophotography. Add to Cart. 8x Reducer / Adjustable Field Flattener 6AIII as well. You will be blown away by the small details you can observe through this AP. After lots of research into refractors I have narrowed down to Willam Optics and mostly leaning towards getting a Zenithstar 81 APO. Write Your Own Review. 00 Add to Basket. 00. New William Optics Flattener 68III This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7. 48mm T mount for Pentax K - Black. This very elegant 2" reducer/field flattener has been designed to optimize the flat-f. xxorza @xxorza_93471 Follow Following. Fluorostar 91 APO quantity. View as Grid List. – Refractor Design: Apochromat (APO) – Number of Refractor Elements: 3. On the William Optics website the adjustment is 5. Case Dimensions. Reviews. I hope this helps. PHONE (562) 215-4473. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. Their website is just plain wrong and has wrong information regarding the 68III and the FLT91. related to the William Optics FLT120 telescope in one place. 0. 00. Product Details. I did have an issue with the focuser, as several screws were very loose and. The William Optics Zenithstar 61 is one of William Optics’ most compact apochromatic refractors. Create. When fully dressed with dovetail, diagonal, and RDF finder, the scope weighs 26#. Note: Adjustment Distance for DSLR and Mirrorless Cameras (and other cameras with the same backspacing) is 5. In a relatively short time, William Optics has established itself and its products as one of the world leaders in short-tube, highly-portable refractors, and has achieved quality recognition for many accessories such as the well celebrated WO Diagonals. com Crafting the Earth's. 5 - posted in Refractors : Looking for information on visual use for planets, lunar and deep sky. 5 Objective – TEC Oil Spaced TripletLong-winded nothing to do because it's raining version: Just to recap, the GT-81 is a triplet air spaced APO with Ohara FPL-53 low dispersion glass costing £725 from FLO. Ex demo - used for product reviews / testing. 91mm Aperture. the content will be. It has so much of the things I think I am looking for; light weight, short tube length, relatively cheap and close to grab n go. William Optics Fluorostar 91 apochromatic refractor. Back Ordered. Buy another brand of same specifications almost, i have TS Optics one that i ordered.