Write Your Own Review. 8x (£139 from FLO). High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. The Esprit+EQ8 are probably a "handful" in terms of handling, but I have seen people use it in they backyard without a permanent installation. Extension Tube Weight. 4mm. Rigging a William Optics Red Cat 51 Red Cat 71 Review by AstroBackyard Red Cat 61 First Look by AstroBackyard Shopping. 5" RotoLock FocuserI would choose the William over the Stellarvue any day. 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. 5 ~ f/8 APO that has 2" barrel opener. William Optics Fluorostar 91 Apochromat. William Optics offers another model of apochromatic triplet refractor, the Fluorostar. #101, Woodland Hills, CA 91364. A patented light weight Bahtinov mask is. William Optics FLT120 - 120 mm f/6. Customer reviews. Precision optics with STM coatings. The STM coatings and superb quality provide excellent optical performance and unmatched value. Was wondering what people thought of them. 8 focal reducer, which brings the FLT 91 to a focal length of 432 mm at f/4. About Us Policies Reviews How To. xxorza @xxorza_93471 Follow Following. 9. 00 New;William Optics is in Taiwan. 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. 8 Field. William Optics Fluorostar 91; ZWO EAF; ZWO EAF to FLT91 key information. 0 mm in spacers and still the same problem. A patented light weight Bahtinov mask is included to provide assistance in focusing, or you can remove it. (Pre Order)New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included) As low as $7,398. The STM coatings and superb quality provide excellent optical performance and unmatched value. Z. William Optics FLAT6AIII special edition Flattener for Fluorostar 91. It is similar to the Gran Turismo series, and at present it comes in apertures of 91mm at f/5. ♦ 91 mm aperture, 540 mm focal length. New William Optics Flattener. 9: 540: Triplet: 3. Zenithstar 81 APO. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. Here are some recent threads on this telescope:The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. FLT151 Features a top-quality triplet air-spaced objective using outstanding Ohara FPL-53 type glass which provides superb correction for these refractors. William Optics. 5kg. Case Dimensions. Details and Features. William Optics Gran Turismo 81 WIFD. Add to Cart. * Your Name: * Your Email Address: *. 3" R&P Focuser Image Circle : >43mm Retracted Length : 441 mm Extended Length : 51 Omm Dew Shield Circumference : 383mm Dew Shield Diameter . I was. Wish List Compare. x0. choose, but William shipped me (direct from Taiwan) the f6. Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) $67. 5” M63 Focuser. However, I always use it with the 0. 8x Reducer/Flattener, as a treat to myself. William Optics telescope comes with a soft carry bag. When fully dressed with dovetail, diagonal, and RDF finder, the scope weighs 26#. 9 APO Refractor features a three element triplet design and uses FPL-53 glass. 00. It is my understanding the William Optics has never sold a true Fluorite scope. Next session will see me adding a total of 2mm. Add to Cart. William Optics Fluorostar 91 APO - Gold. 72 Reducer Flattener 8 . Fluorostar Series 1 Product; CAT Series 4 Products; Video Demonstration. Related Products. WO Flat 6AIII will provide good illumination and flat field across 97% of full frame sized. The ZWO EAF will definitely fit on the coarse focus knob on left side. $656. 9 Triplet Apo Refractor with Carry Case - Gold # T-FLT-91GD-RP33 William Optics FLT 91 Fluorostar 91mm f/5. Adapter. 9. 7" R & P Focuser. New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included). 105Kg. 【Clearance】 Zenithstar 61 (Blue) OTA only. 03. William Optics FLT 156 - posted in Refractors : For those who may be interested, William Optics has just listed its Fluorostar 156 f/7. The doublet objective uses FPL53 glass (Image 1. With a quadruplet Petzval optical design. . The William Optics Fluorostar 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. "high performance and looks good doing it, versatility, manageability, afforfability: a better balance than anyone has a right to expect". The STM-coatings and superb quality provide excellent. Abuse reports are anonymous and the content's owner will not be. The Fluorostar line includes 91, 120, 132 and 156 mm diameter refractors which are. Be the first to Write a Review for this item! FAQ Please fill in the form below to ask a question. William Optics. 2 Reviews . . Fluorostar 91 APO quantity. New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included). 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. Add to Cart. In a previous article, I reviewed the Fluorostar 132. - posted in Refractors : Sorry for joining this discussion a little late, I am trying to understand whether there is an issue with Fluorostar focuser or not. 9 Focuser : 3. Note：End of 2" barrel has 48mm threads. Edited by e34stx, 13 April 2021 - 04:46 AM. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. 1 Review . With a 540mm focal length and f/5. I use mine for visual applications only. 72 Reducer Flattener 8. Wish List Compare. Designed by a leading designer with FPL-53 glass. 00. : 69900. Page 22 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : Well oddly enough I reached 4% tilt adjustment the one night I tried that (beginners Luck) but the next imaging session I had the bad stars and I tried to adjust the tilt but didnt work for me that night. 77 degrees (see scope mounted, Version B). New member here. The cooled CMOS camera Jack uses collects high-quality image data with much less noise than a DSLR/Mirrorless would. Celestron CGEM II 800 HD. Our #: T-WO-A-F132TGIV-RP37R. 8 TRIPLET APO OTA . RedCat Series Petzval Refractors 4. The FLT 91 is an Apochromatic refractor with a focal length of 540 mm and an aperture of f/5. Wish. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. related to the William Optics FLT120 telescope in one place. Wish ListCompare. So, this comes down to the. Add to Cart. Out of stock. Add to Cart. 9 Focuser Dual Speed 3. William Optics Zenithstar 61-II f/5. View full description Download Manual 1 year warranty The FRA500 is slightly lighter and slightly smaller in length. Erecting Prism. The FLT 91 is the perfect apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. The three-element optical design features a 91mm aperture using FPL-53 glass. De FLT 91 is de perfecte apochromatische refractor voor visuele en fotografische astronomen die kwaliteit eisen in een middelgrote telescoop. Abuse reports are anonymous and the content's owner will not be notified. Fluorostar series (FLT) represents William Optics’ top of the line apochromatic designed for astrophotography. Precision optics with STM coatings. The store will not work correctly in the case when cookies are disabled. More Info . The 3. William Optics ZWO / ASI Vaonis. 9 FLT Apochromatic Refractor is just the excellent midsized visual and photographic instrument sought by discerning. Guide Star 61 (Soft Carry Case included) As low as $438. 9 Imaging APO Triplet Refractor FPL-53 - Australian Authorised dealer Add the FLAT6AIII 0. With its triplet 120mm fully multicoated F6. Add to Cart. I have question for any owners of this scope who may have a Moonlite focuser installed on it. From what I can understand/translate, it seems that (aside from the objective diameter), the Takahashi TOA-130 feels bigger. See shipping choices & costs. The Esprit+EQ8 are probably a "handful" in terms of handling, but I have seen people use it in they backyard without a permanent installation. Description. The three-element optical. 5mm spacer, but got elongated stars in the four. Flat6AIII special edition for FLT91. Fluorostar 132 f/7 APO. Select Options. This revolutionary new WO FF68III Adjustable Flattener was made for 6 -7. Out of stock. William Optics Corp. The reducers always look undersized in comparison. SKU. William Optics GuideStar 61 (1) £299. NexStar Evolution 8" EdgeHD with StarSense. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. 55 AstroPhysics Starfire new in 1989. 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. 00. Check items to add to the cart or select all. New Fluorostar 132 (Innovative Bahtinov Mask Cover (Patented) included) $4,378. 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. Adapters. Hope that WO reads related threads here and strive to improve. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. William Optics FLT 91 Fluorostar 91mm f/5. Corporate. Unit price / per . 5 APO Triplet Refractor - Red. You're reviewing: Fluorostar 120. After lots of research into refractors I have narrowed down to Willam Optics and mostly leaning towards getting a Zenithstar 81 APO. 1) William Optics Fluorostar + CEM70G. 00. 0 mm in spacers and still the same problem. The three-element optical design features a 91mm aperture using FPL-53 glass. – Telescope Aperture: 6. 3" R&P Focuser Image Circle : >43mm Retracted Length :. Back Ordered. I ordered a William Optics FLT 91 Fluorostar 91mm f/5. Note: Adjustment Distance for DSLR and Mirrorless Cameras (and other cameras with the same backspacing) is 5. . · 225 views Hello, I want to ask if there is a way to remove the dew shield of the William Optics FLT91 scope? I know it can be retracted but l'm trying to remove it to be able to put it in a travel bag. with integrated bahtinov mask and CNC finishing. 5 and a focal length of 780mm. 72. William Optics Fluorostar 91 APO - Red. was founded in Taiwann for the purpose of making astronomical telescopes for use by the more demanding amateur astronomer and birder. New for 2021 - William Optics Fluorostar / FLT 91. New for 2021 - William Optics Fluorostar / FLT 91. 00. 99x600" Oiii 65x600" Ha 12x120" R 12x120" G 12x120" B Bortle scale: 6 Telescope: William Optics Fluorostar 132 Flattener: William Optics Flat 68III Camera: QHY600M OAG: QHY OAG-M Add to Cart. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. $275. WO FLT91 and Moonlite Focuser - posted in Refractors : Yeah, yeah! Go ahead and blame me for the beautiful weather. 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. The Esprit seems to be bullet proof (almost) but the Fluorostar has had some reports of poor focuser construction. "high performance and looks good doing it, versatility, manageability, afforfability: a better balance than anyone has a right to expect". Add to Cart. 95+. 9. → Equipment Discussions. 8x. The William Optics Zenithstar 61 is one of William Optics’ most compact apochromatic refractors. 3" R&P Focuser Color Red Space grey Lens Material Lens Type Apochromatic Triplet Prime Lens Focal Length 540mm Diameter 91mm Aperture f/5. No more image shift. New for 2021 - William Optics Fluorostar / FLT 91 An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. The three. As low as $171. $656. 00. Mount: EQ6R-Pro. I have seen online that this may not be the case for all William Optics refractors, or other telescopes, so definitely do some research for your setup; The latest model is powered. SWAN 2" SWAN 1. Can I use a 2. All New WO x0. All Instruction Manuals for William Optics products are available for online viewing or download as PDF files. Sale Regular price $1,998. There are a few superficial scratches on the tube but the optics are great. With a focal length of 478mm, this f/5. 9 imaging APO (Innovative Bahtinov Mask Cover (Patented) included !!)We are very exciting to announce New 2019 Super ZenithStar 81 F6. Write a Review. Image credit: William Optics. Refactor Telescope: William Optics FLT120. Designed by a leading designer with FPL-53 glass. Fluorostar 91 SKU: T-FLT-91RD-RP33 . Lens Type Apochromatic Triplet Prime Lens Focal Length 540mm Diameter 91mm Aperture f/5. You really want a fine focuser as focusing a camera without one can be tricky. Despite being only a little longer, that diameter and extra glass means this is much heavier than my Z73. Check items to add to the cart or select all. 5 refractors. 8x Reducer & Field Flattener - M63 to 2". Im excited. Vixen Style Mounting Base for RedCat - Black. Also a fine focusing knob is pretty standard on even cheap telescopes these days. My first YouTube video! Watch as I unbox the William Optics Fluorostar 91 and give my initial thoughts and impressions. Good condition with some slight signs of use as you would expect - complete. Add to Cart. $691. 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. Another great choice would be the Stellarvue SVX-130T, but it is ~2x the price of the Esprit. The scope was delivered in a box with the case and scope inside. Rated 0 out of 5. x0. A soft carry case comes standard with the William Optics Fluorostar 91. 25-inch 90-deg Erecting Prism Diagonal from the same William Optics vendor at eBay. 99. 00 My account / Register. 00. 5 APO Telescope features a three element FPL53 multi-coated lens and offers an excellent contrast and aberration correction. 00. The reducing factor of this field flattener is 0. Wish List Compare. More Information; Specification: Reviews. T-FLT-91-red-Refurbished. The William Optics Fluorostar 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. Summary. Its always a shame to take off the visual back on these. I hope this helps. Despite being only a little longer, that diameter and extra glass means this is much heavier than my Z73. Just ordered a Space Gray William Optics FLT 91 Fluoro Star 91mm f/5. Add to Cart. A-F151. I can only say that Esprit owners seem well satisfied and and the same is true of Willams Optics scope owners. skysurvey, on 15 Nov 2020 - 06:16 AM, said: No, the WO 91 Fluorostar isn't any cheap but I have no idea why, IMO we are talking about a 2515€ telescope and about a 1382€ telescope that are the same, don't let you that 1mm of difference confuse you. Related Products. A superb combination of portability and aperture!. $2,494. Quality. FMC triplet APO design. Het optische ontwerp met drie elementen heeft een opening van 91 mm met FPL-53-glas. Customer reviews. Wish List Compare. This beautiful 91mm f/5. 00 Add to Basket. Comment. I wanted to create a thread to contain all information, tips, guides etc. Wish List Compare. It's f/7. 575kg (OTA with 2. Wish List Compare. Wish List Compare. The price difference is about 2k (Euros). $3,298. 5 ED optics, the FLT120 will appeal to the discerning astrophotographer and Visual Observer. 9 Triplet!!! Totally lucked out and found one in stock at one of the Telescope sites. Telescope: William Optics FLT 120 with Flattener 68III. This is a top of line material used in only the finest refractor telescopes. I wanted to create a thread to contain all information, tips, guides etc. Open Monday through Friday 9-6pm PST and Saturday 10-4pm PST. 291bs / 5. Nickname. $1,998. Add to Cart-3. Add to Cart. 5" Focuser) Nickname. 徐達杉. January 30, 2023 by Patrick. 8 These are premium instruments primarily aimed at astrophotographers, but they can also be used for visual observations. 9 and reduces to f/4. Add to Wish List. I have the Redcat 51 and loved the quality. 25 inch RotoLock) All new, a unique, RotoLock high-quality fully multi coated WO 50mm f/4 Guiding scope that fits. All New Slide-base UniGuide 50mm Scope . Cameras: ZWO ASI 2600mm Pro and ZWO ASI 120mm-mini. Takahashi TSA. New 3. The STM coatings and superb quality provide excellent optical performance and unmatched value. Telescope: William Optics FLT 120 (780mm at F/6. $28. 2019 All New Adjustable Flat6AIII (T-mount not included) 2019 All New Adjustable Flat6AIll (T-mount not included) PRODUCT DESCRIPTION: Field flattener / X0. EQ Mount & Telescope Package. Review. 8 reducer Flat 6A III with the M63 to M92 adapter and my ASI2600MC pro. Gran Turismo 71 f/5. 7" rack and pinion focuser, ready to accept William Optics field flatteners. 1 Item. 3" Rack & Pinion; Color: Red; Lens Material: FPL-53; Strehl Ratio: 0. FLAT6AIII special edition for Fluorostar 91 . Patented William Optics Bahtinov Mask Cover. Available from Ontario Telescope and Accessories in Canada. 1. $2,494. ♦ Dual-speed rack and pinion focuser with "Rotolock" clamping. You're reviewing: All New. 9 Focuser Dual Speed 3. This scope is amazing, and huge shout out to AgenaAstro for getting me this in su. 00. Add to Cart. RedCat 71 APO 350mm f/4. 9 APO Red Triplet Refractor w/ 3. $293. 1) William Optics Fluorostar + CEM70G. This flattener contains a 63 mm opening on one end that threads into the telescope, and an M48x0. Out of stock. Write Your Own Review. Their website is just plain wrong and has wrong information regarding the 68III and the FLT91. Open box. William Optics Fluorostar FLT 91 Apochromatic Refractor - Checked & Tuned (3) £1,989. William Optics 132 mm FLT f/6. William Optics Fluorostar FLT 91 Apochromatic Refractor - Checked & Tuned (3) £1,989. 00. The William Optics TMB 110mm triplet lens refractor is a very well made telescope. Add to Cart. New for 2021 - William Optics Fluorostar / FLT 91. Download Manual. William Optics Corp. 3" Rack & Pinion Focuser - Specify. Astronomy > Telescopes > William Optics > FluoroStar > William Optics Apochromatic refractor AP 91/540 Red OTA Product no. 00. 8 Reducer Flattener 7A . Add to Cart. Joined: 07 Feb 2017. William Optics - High-Quality Refractor Telescopes, Telephoto Lens, Binoculars, Eyepieces, Diagonals, and other Optical Accessories. Coupled with my ZWO ASI1600 MM Pro, the field of view is 2. Add to Cart. SKU WO-T-FLT-91GD-RP33 Original price CA$2,697. William Optics Zenithstar 61 II APO (14) £579. Fluorostar 91 APO Triplet Refractor. The STM coatings and superb quality provide excellent optical performance and unmatched value. 1 81bs / 4. William Optics RedCat 51 (Unboxing) 0:16. This elegantly designed 2" reducer / flattener has been designed to optimise the flat-field imaging performance of William Optics f/6 to f/7. Review. 0 TELESCOPE. Rated 0 out of 5. Specifications.