My William Optics FLT91 (without reducer) comes out to 540mm at f/5. 100mm f/5 1990 TV Genesis used in 2003. Types of William Optics: RedCat 51 Refractor Telescope. Download Manual. 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. 00. Details. $656. FLT 91 triplet lens f/5. The STM-coatings and superb quality provide excellent optical performance and unmatched value. Guide. Those look so nice. Fluorostar 91 APO Triplet Refractor. 00. 00. Description. 9 Focuser Dual Speed 3. View full description Download Manual 1 year warranty The FRA500 is slightly lighter and slightly smaller in length. → Refractors. clear sky chart is as usual completely wrong right now. Free shipping. Price jumps out as the obvious difference $3210 vs $1999 though availability and color might be a consideration. 540mm Focal Length. William Optics Fluorostar 91 apochromatic refractor rood. Comes with Standard 2 year warrantyOptical Performance The Fluorostar 132 is a three element designed APO refactor. The case is a nice, well made, padded soft side case. New Hot. Celestron PowerSeeker 127EQ; North Star Equatorial Platform; iOptron HAZ-46 Alt Azi Mount Review; Brandon Vernonscope 94mmF7 APO first impressions. 72 Reducer Flattener 8. 00. 00. The Esprit blows the ED102CF out of the water in every way, except Esprits are heavy. The STM coatings and superb quality provide excellent optical performance and unmatched value. 0 Items - $0. Fluorostar 91 RotoLock The William Optics FLT 91 has a focal length of 540mm, which brings in smaller DSO’s for a closer look, yet is wide enough to capture some of the most popular large nebulae in the sky. This is a top of line material used in only the finest refractor telescopes. Hence any optics that fail to meet their minimums are discarded. 00. 7" Rack & Pinion style and can be rotated 360-degrees. You have to take out a screw on the bottom of the focuser to get to the 2 set screws holding the knob on and then remove knob. 00. The three-element optical design features a 91mm aperture using FPL-53 glass. 1. Hot. Decrease Quantity of William Optics Fluorostar 91 APO - Red − Increase Quantity of William Optics Fluorostar 91 APO - Red + Adding to cart… The item has been added. So, this comes down to the. 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. New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included). P08 Crafting the Earth's Finest Astronomical Instruments o o o Usage The Fluorostar 110 is designed to work with both 1 1/4 inch and 2 inch diameter eyepieces in various focal lengths, for both daytime and nighttime viewing. New for 2021 - William Optics Fluorostar / FLT 91. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. Gran Turismo 71 f/5. Check items to add to the cart or select all. 99. 00)Stunning Optics. Details and Features. Write Your Own Review. 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. The William Optics FLT 91 has a focal length of 540mm, which brings in smaller DSO’s for a closer look, yet is wide enough to capture some of the most popular large nebulae in the sky. The William Optics Fluorostar 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. choose, but William shipped me (direct from Taiwan) the f6. William Optics FLT120 - 120 mm f/6. The flattener that comes with it is superb and can even illuminate full sized DSLRs, but I’ve only used APS-C sized sensors. Latest model with 3. I have since added another 1. Product Details. 4mm. 00. Add to Cart. When you report abuse on some content on AstroBin, the content will be hidden until a moderator reviews it. The store will not work correctly in the case when cookies are disabled. William Optics Fluorostar 91 APO - Gold. William Optics. 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. William Optics Zenithstar 61 II APO (14) £579. William Optics offers another model of apochromatic triplet refractor, the Fluorostar. x0. 00. 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. 87. Abuse reports are anonymous and the content's owner will not be. Gran Turismo 71 APO. onto WIlliam Optics Fluorostar 91 | Download free 3D printable STL models. 540mm Focal Length. Both about the same price. 00. All New WO x0. RedCat 51 II APO 250mm f/4. I hope this helps. William Optics. 00. Page 4 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : Seems like there is a pretty large shipping fee to order from WO website to the US. Whereas the WO 91 is a natural f/5. William Optics Fluorostar 91 FLT91 f/5. Page 8 of 23 - WO Fluorostar 91 - new scope - posted in Refractors : thanks, i thought so, but in the back of my mind i thought it was designed to be at a certain point. 00. A soft carry case comes standard with the William Optics Fluorostar 91. The William Optics Flat6AIII is an apochromatic triplet 0. New. Add to Cart. 00. Share. Flat6AIII special edition for FLT91. 9, 132mm at f/7, and 156mm at f/7. - This scope is extremely sharp and has great color correction, even better than the previous design. 00. To see how to install the Flat6Aiii including the correct back focus go to the following link:Questions. 5 APO Telescope features a three element FPL53 multi-coated lens and offers an excellent contrast and aberration correction. Shipping will be. 00 $295. 00. 8 Reducer. New for 2021 - William Optics Fluorostar / FLT 91. The FLT-156APO has a focal length of 1228mm putting focal ratio of F7. 99. Description Reviews (0) Description. 78%. -6. Total integration time of 28 hours and 32 minutes. Below is a photo of what every astronomer needs in their observatory. 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. 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. This William Optics 91 mm f/5. William Optics has a reputation for mechanically well built refractors and I would have to say the FLT-98 is no exception. Just ordered a Space Gray William Optics FLT 91 Fluoro Star 91mm f/5. Customer. Used for product review. 25 inch DURA BRIGHT Dielectric Diagonal. Add to Cart. 5%. New for 2021 - The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. Ex Demo Ex-demo. William Optics FLAT6AIII special edition Flattener for Fluorostar 91. Summary. High-quality Soft Case. I bought a FLT 91 a few months back. 8x reducer (6Aiii), you must be 62. Utilizing FPL-53 synthetic fluorite glass with STM coatings, this telescope provides excellent aberration correction and amazing optical performance. 80mm f/6 William Optics ZenithStar Doublet Achromat new in 2005. William Optics FLT120 - 120 mm f/6. Select Options. This review saves. ♦ Dual-speed rack and pinion focuser with "Rotolock" clamping. 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). Complete and in great condition. 8 Field Flattener for Fluorostar 91. Summary. Mount: EQ6R-Pro. William Optics Fluorostar 91 Triplet Refractor. Fluorostar 120. Back Order. $8,898. Sign up for our newsletter to get exclusive deals, observing tips, and new product announcements. We can't find products matching the selection. William Optics GT153 Triplet APO. Coupled with my ZWO ASI1600 MM Pro, the field of view is 2. $1,698. It looks really nice but I was definitely hoping for a 102/103 or even a 115mm in the Fluorostar line. 291bs / 5. 00 £399. 5 ratio refactors, including the new FLT91 telescope. The build quality is much better on the William and the color correction on the Stellarvue with no name glass is not the best. $2,360. AED 7,600. This William Optics 2" Field Flattener & Reducer has been designed to optimize the flat-field imaging performance of William Optics GT71, GT81, Z81 & Z103 refractors. New for 2021 - William Optics Fluorostar / FLT 91. The scope also has a graduated scale for perfect camera alignment. Palette in order: SHO, OSH, HSS, and HOO plus the rig itself. 3" R&P Focuser Color Red Space grey Lens Material Hello everyone!In this video I will be going over the William Optics FLT91. 8x reducer which comes to 432mm f/4. I wanted to create a thread to contain all information, tips, guides etc. Out of stock. 00Adjust Distance for DSLR and Mirrorless Camera is 5. I have question for any owners of this scope who may have a Moonlite focuser. 9 Focuser Dual Speed 3. Our #: T-WO-A-F132TGIV-RP37R. Add to Cart. Fluorostar 91 William Optics. $5,668. More Information. Add to Wish List. . Open Monday through Friday 9-6pm PST and Saturday 10-4pm PST. FLAT6AIII special edition for Fluorostar 91 . 9 imaging APO (Innovative Bahtinov Mask Cover (Patented) included !!)We are very exciting to announce New 2019 Super ZenithStar 81 F6. William Optics Fluorostar 91 Apochromat. Dielectric Coating Diagonals; Erecting Prisms; Accessories. Details. Wish List Compare. Prices are confirmed for all William Optics products in stock!. 00. The FRA is also a natural f/5. 00). item 3 William Optics FLT 91 Fluorostar 91mm f/5. 00. Their website is just plain wrong and has wrong information regarding the 68III and the FLT91. Precision optics with STM coatings. 95+ Strehl Ratio. You're reviewing:New Fluorostar 132 (Innovative Bahtinov Mask Cover (Patented) included) Nickname. This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7. Check items to add to the cart or select all. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. Submit Review. FLAT6AIII special edition for Fluorostar 91. Be the first to Write a Review for this item! FAQ Please fill in the form below to ask a question. Add to cart. 9 FLT Apochromatic Refractor is just the excellent midsized visual and photographic instrument sought by discerning astronomers. Fluorostar 132 Deep Sky Astrophotography Walkthrough by Astrobackyard. The doublet objective uses FPL53 glass (Image 1. Looking at the FLT91, assuming it comes in at $2k, adding a flattener and. Related Products. Focal ratio is f/5. 9. Was wondering what people thought of them. $1,299. 00. I have an A&M 110mm which is the WO 110 FLT with TMB optics and a carbon fiber tube. William Optics Fluorostar 91 / FLT91 / New scope and flattener/reducer; New scope and flattener/reducer. Providing the supreme visual and photographic performance astronomers expect from a medium sized telescope, the William Optics Fluorostar 91 f/5. Add to Cart. The three-element optical design features a 91mm aperture using FPL-53 glass. $656. See shipping. Wish List Compare. 9. Jay En Em. From what I can understand/translate, it seems that (aside from the objective diameter), the Takahashi TOA-130 feels bigger. FLT-98 is equipped with the beefy 3. The 3. Full manufacturers warranty. An index has been included which includes links to the direct post for each topic in question. The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. The 44. 9 APO triplet refractor is decked and ready to ride on your telescope mount! Whether you want to do visual astronomy, astrophotography, terrestrial observation or wildlife photography, this the scope for you! The FLT91 is designed form the optics down for a quality experience. $1,998. Posted 18 March 2021 - 09:36 AM. Submit Review. The price difference is about 2k (Euros). FLT156. This revolutionary new WO FF68III Adjustable Flattener was made for 6 -7. 3" Rack & Pinion Focuser - Specify Color Home / William Optics Fluorostar 91 with 3. Add to Cart. William Optics FLT Fluorostar 120 f/6. Special thanks to Agena Astro for get. The APO triplet optics of the Flat6AIII are made with Ohara glass and fully multi-coated to provide good. William Optics WIFD Redcat 61 F/4. No more image shift. 00. 【Clearance】 Zenithstar 61 (Blue) OTA only. The three-element optical design features a 91mm aperture using FPL-53 glass. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. New William Optics Flattener. 3 apochromatic. Add to cart. William Optics. STAR 91 Ml 21 SPECIFICATION M92 M92 M83 Focal Length : 540mm Diameter : 91 mm Aperture : f/ 5. About WO. Review. Page 1 of 2 - Anyone using TS-76EDPH? - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: I am interesting to buy an TS 76EDPH refractor to couple with my a7s. 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). View full description Download Manual 1 year warrantyNew Fluorostar 132 (Innovative Bahtinov Mask Cover) ₹ 393,103. 5-Inch Focuser attached. 8x flattener/reducer with STM-coated Ohara lenses. 00 Sale price $ 1,998. 9 Focuser : 3. Hi all, Curious to see if anyone has any reviews/thoughts on the WO FLT 91 scope. Wish List Compare. Telescope: William Optics FLT 120 (780mm at F/6. I was also lucky enough to find the 0. FLAT6AIII special edition for Fluorostar 91 . I can only see that the WO has a better focuser (not too much) and a thermometer, other than. $ 1,998. Out of stock. Case Dimensions. 1 65kg (OTA only) 1 2. Next session will see me adding a total of. This very elegant 2" reducer/field flattener has been designed to optimize the flat-f. The three. Reviews 1. $6,049. Create New Wish List. Description For FLT 91 ONLY! Special edition flattener/reducer with adapter for the Fluorostar 91 telescope. 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. 8 triplet on its website. New for 2021 - William Optics Fluorostar / FLT 91. The Flat6AIII features adjustable spacing for use with a range of cameras and imaging systems. Here, I will review the William Optics Zenithstar 61. 9 Imaging APO Triplet Refractor FPL-53 ProAstroz. Page 1 of 2 - Askar FRA500 vs the WO FLT 91 - posted in Refractors : Looking at these two scopes. 5 Triplet Apo Refractor with Carry Case - Available in 3 Colors. Zenithstar 81 APO. 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. x0. Add to Cart. Add to Cart. New. An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. Excellent condition, all present and correct but tatty outer box. The FPL53 Triplet APO Optics deliver superb contrast and excellent colour correction. $558. Add to Cart. 8x flattener hereAdd. 75 Flattener Adapter + $49. Lens Type Apochromatic Triplet Prime Lens Focal Length 540mm Diameter 91mm Aperture f/5. 0 TELESCOPE. 16%. RotoLock Adapters; Camera / T-Mount Adapters; Mounting. The 68III is at least twice as big and twice as heavy as the 6AIII. Regular price $1,499 10+ In Stock View. However I have not found many reviews or youtube video reviews about this particular scope. 2 plus a 3. Cloudy Nights. William Optics. William Optics Mortar三脚用赤道儀接続アダプター タカハシ90S（EM100）用. $691. FLAT6AIII special edition for Fluorostar 91 . 【Refurbished】Fluorostar 91 APO-Red. Add to Cart. Summary. For the William Optics . 4. Add to Cart. William Optics Fluorostar 132 APO Refractor OTA (Red) Optical Performance The William Optics Fluorostar 132 is a. 95+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. The FRA is also a natural f/5. The dew shield is retractable and slides firmly but smoothly up and down the body of the scope. Also a fine focusing knob is pretty standard on even cheap telescopes these days. was founded in Taiwann for the purpose of making astronomical telescopes for use by the more demanding amateur astronomer and birder. 9 native or f/4. William Optics. Quick view Choose Options. Wish List Compare. (WxHxD) 99cm x 34cm x 30cm. 130mm F/8 1992 AstroPhysics Starfire EDT used in 2003. 9 Triplet Apo Refractor with Case. Combined with the Flat7A flattener by William Optics, it produces a fast aperture ratio of f/5. Case Weight. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. Wish List. Mfg #: FLT91-TG. Sale Regular price $1,998. Quick View. 9 Focuser Dual Speed 3. 3" R&P Focuser Image Circle : >43mm Retracted Length :. You must be logged in to post a review. In Stock. New member here. New 3. Optics: William Optics Fluorostar 91 w/reducer: Filter Wheel: ZWO 7-position automated filter wheel (50mm/2″). The three-element optical design features a 91mm aperture using FPL-53 glass. 9. 9 Triplet Apo Refractor with Carry Case - Gold # T-FLT-91GD-RP33 William Optics FLT 91 Fluorostar 91mm f/5. View full description Download Manual 1 year warranty FLAT6AIII special edition for Fluorostar 91 . 8x Reducer / Adjustable Field Flattener 6AIII as well. But i can not find reports about how well this. 5 - posted in Refractors : Looking for information on visual use for planets, lunar and deep sky. 5 Truss tube Dobsonian; Celestron PowerSeeker 70AZ Telescope ($10 Scope) Orion. 00 HK. Optically Unbeatable. and not great for most deep sky imaging. Additional Information. 00 Add to Basket. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. Special Edition FLAT6AIII Adjustable Reducer / Flattener for William Optics Fluorostar FLT 91 Telescopes.