Its a nice scope, but its too large to carry in my truck. And attached is a FWHM-Eccentricity analysis of the luminance data. William Optics Fluorostar 91 — Combines a compact design with remarkable imaging capabilities. 38 comments. ر. doc 3Version 1. I. Benny Sachdev. $ 293. com. That does not mean that it cannot be used visually, with an eyepiece, for the visual observer who wants the very best image. Price jumps out as the obvious difference $3210 vs $1999 though availability and color might be a consideration. 8x Reducer / Adjustable Field Flattener 6AIII for FLT 91 (432 mm at f/4. Fax: +1-866-534-3097. 9 Triplet Apo Refractor. Astrometry. Or fastest delivery Thu, Nov 16. 25”-2” adapter Includes. (Pre Order)New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included) As low as $7,398. The three. . Qty. The focuser is solid and doesnt move in a way which it. These corrective optics work best at a specific distance away from their glass elements, most commonly 55mm. William Optics Fluorostar 91 0. $67. The deep-sky imaging performance of that little APO is what. Add to Cart. Wish List Compare. William Optics Fluorostar 91 / FLT91 Imaging Cameras ZWO ASI2600MM Pro Mounts ZWO AM5 Filters Optolong H-Alpha 3nm 2" · Optolong OIII 3nm 2" · Optolong SII 3nm 2" Accessories William Optics Flat68 III · ZWO ASIAIR Plus · ZWO EAF · ZWO EFW 5 x 2" Software Pleiades Astrophoto PixInsight Guiding Telescopes Or Lenses. 7. 75 thread on the opposite end. SKU. 00 Add to cart. 9 Focuser : 3. Nickname. Fluorostar 91 Trailer. As low as $4,378. Glass is the same, but you can pay extra for the report on the WO. Reviews. State: Nieuw . Wish List Compare. The FRA500 is slightly lighter and slightly smaller in length. • Can be used in both autofocus and manual modes. : +1-847-513-6201. 00. William Optics Fluorostar 91 ZWO ASI6200 MC ZWO ASI6200 MM Celestron CGX Radian Triad Ultra Narrowband Filter Software Photoshop Adobe Camera RAW DeepSkyStacker Topaz Denoise AI Starnet++ Processing Stretch Blend with Starnet++ star-less image for each stack Mono image as Luma. 9 & GH5. 8x reducer is almost identical FOV as the Zenithstar was, but gathers more light and faster, and the Zenithstar was not as good as the Redcat anyway. add to list. New for 2021 - The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. William Optics Fluorostar 91 / FLT91 Imaging Cameras ZWO ASI2600MM Pro Mounts iOptron CEM70 Filters ZWO Blue 36 mm · ZWO Green 36 mm · ZWO H-alpha 7nm 36mm · ZWO O-III 7nm 36mm · ZWO Red 36 mm · ZWO S-II 7nm Accessories William Optics Flat68 III · ZWO EAF · ZWO EFW 7 x 36mm SoftwareWilliam Optics Fluorostar 91 / FLT91 4 49. New Fluorostar 132 (Innovative Bahtinov Mask Cover (Patented) included) The William Optics Fluorostar 132 (FLT 132) is ideal for astrophotography due to the FPL-53 glass objective lens. As low as $4,378. Gain 0, -10C, 54 each 300 sec lights + flats + dark flats + darks. William Optics Fluorostar 91 / FLT91 / New scope and flattener/reducer; New scope and flattener/reducer. . All New Slide-base UniGuide 50mm Scope . 900. The STM-coatings and superb quality provide excellent optical performance and unmatched value. I have that same combo riding on an iOptron GEM28EC. Add to Cart. 72) Filter: Chroma 36mm HA 3nm Telescope Filter - Unmounted; Filters: ZWO Premium LRGB Imaging Filter Set - 36mm Round Unmounted (Used only RGB)Page 19 of 22 - WO Fluorostar 91 - new scope - posted in Refractors : Soon after I had purchased my 91mm I had added a 2nd WO Losmandy bar at the top, and then mounted the slide base for the guidecam on top of the dovetail. WANT! 2y. . ln. Im excited. I couldnt get focus until I figured out to remove it. I'm looking forward to this coming Christmas. William Optics Fluorostar 91 / FLT91 Imaging Cameras ZWO ASI2600MC Pro Mounts Sky-Watcher EQ6-R Pro Acquisition details Dates: Nov. Add to Cart. Zygo test available at additional cost. 77 degrees (see scope mounted, Version B). Fluorostar. William Optics Fluorostar 91 / FLT91 : Telescope or lens: 105: 949: William Optics Fluorostar 98 / FLT98 : Telescope or lens: 12: 87: William Optics Gran Turismo 102 (f/7. The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. 9. Tel: +34 91 663 2500 Turkey - Istanbul Tel: +90 212 36 62 900 UK - Slough Tel. 5" R&P Focuser. I just purchased a William-Optics Fluorostar 91 telescope and Flat 68 iii field flattener, and have a question about connecting a ZWO ASI 533 MC Pro camera. 9 Focuser : 3. 41,727 likes · 1,739 talking about this · 869 were here. 00. 00. Incredible numbers. I'm also including the Flat 6AIII 0. 00. Fluorostar 91 APO Triplet Refractor. FREE delivery Fri, Nov 17 on $35 of items shipped by Amazon. Fluorostar 91 APO Fluorostar 91 APO Fluorostar 91 APO Fluorostar 91 APO Fluorostar 91 APO Christmas Tree Nebula by By Nihar Nair Christmas Tree Nebula by By Nihar Nair. I have it, and the optics are great, but the mechanics has sag and tilt. William Optics Fluorostar Series:. Add to Cart. Add to Cart. Product Details. I bought it used and I know I need to do a factory reset on it. William Optics manufactures Refractor telescopes, binoculars, digital camera adapter lenses for telescopes, eyepieces, diagonals and other accessories. The three. The three-element optical design features. 4 Videos. Here is my FLT 91/Reducer combo with a 2600MC, so the chip is bigger and the pixels are smaller, both of which put a larger strain on the optics. Title Spare Part List Fluorostar 2nd Edition lower SN 10000. WO Gran Turismo 81 . I can only see that the WO has a better focuser (not too much) and a thermometer, other than. Product Details. Dielectric Coating Diagonals; Erecting Prisms; Accessories. f/5. 72X (TKA36580L) · William Optics Flat6A III. 0 mm in spacers and still the same problem. . These corrective optics work best at a specific distance away from their glass elements, most commonly 55mm. Write Your Own Review. The APO optics of the Flat6AIII flattener are made with Ohara glass and are fully multi-coated to provide good illumination and a beautifully flat field across 97% of full frame sensors. handle for cover MC5. 9 Imaging APO Triplet Refractor FPL-53 ProAstroz William Optics Fluorostar FLT91 f/5. The FLT 91 employs FPL-53 glass and has an optical design consisting of three elements. William Optics Fluorostar 91 / FLT91 Imaging Cameras ZWO ASI2600MM Pro Mounts Sky-Watcher HEQ5 PRO Filters Chroma Blue · Chroma Green · Chroma H-alpha 3nm Bandpass · Chroma OIII 3nm Bandpass · Chroma Red Accessories Pegasus Astro Powerbox Micro · William Optics Flat6A III · ZWO EAF · ZWO EFW 7 x 36mm SoftwareThe 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. Like. 72) Filter: Chroma 36mm HA 3nm Telescope Filter - Unmounted. 9 and reduces to f/4. 99. FLAT6AIII special edition for Fluorostar 91. 9 Triplet!!! Totally lucked out and found one in stock at one of the Telescope sites. Filter: Chroma 36mm OIII 3nm Telescope Filter -. Despite being only a little longer, that diameter and extra glass means this is much heavier than my Z73. 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 An Apochromatic triplet refractor for visual astronomers and astrophotographers who want very high performance from a midsize telescope. 9, 132mm at f/7, and 156mm at f/7. 95+. 72) Filter: Chroma 36mm HA 3nm Telescope Filter - Unmounted; Filter: Chroma 36mm OIII 3nm Telescope Filter - Unmounted; Mount: Sky-Watcher EQ6-R Pro (Used iOptron Tri-pier with Adapter 8036-TK)The William Optics Fluorostar 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. Kingfisher Shot on WILLIAM OPTICS Redcat 51 250mm f/4. We found other products you might like! New William Optics Flattener 68III. An Avro Lancaster bomber built in Ontario by Victory Aircraft Ltd. WR-134 is the blue arc seen in the image. William Optics Fluorostar 91 Triplet APO Refractor Telescope with 3. Horsehead Nebula in Narrow Band - posted in Experienced Deep Sky Imaging: Here is the Horesehead nebula, taken in narrow band with about 15hrs worth of data using the Fluorostar 91, ZWO2600MM Jump to contentHello all, I am finally reviewing my very own William Optics Gran Turismo 81, triplet apochromatic refractor! With a focal length of 478mm and a focal ratio. Providing the supreme visual and photographic performance astronomers expect from a medium sized telescope, the William Optics Fluorostar 91 f/5. The STM-coatings and superb quality provide excellent optical performance and unmatched value. Be the first to review this product . Fluorostar 91 Trailer. 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. FLAT6AIII special edition for Fluorostar 91. $2,697. . This is the same item as the P-FLAT6AIII reducer/flattener sold for other WO. The W-O documentation is pretty sparse (!), but their Flat 68iii page shows the back focus adjustment for a DSLR to be “5 mm (need additional adapter)”. $79. 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. Vendor. 02. This is page 2 of 3. 9 Triplet Apo Refractor with Carry Case - Red # T-. I am new to astronomy. New for 2021 – The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. not quite sure on the purpose, FLAT in the name makes me think it's a flattener? DSLR Attachment - William Optics 48mm T-Ring for Canon EOS - I'm guessing I need something else to complete connection to the telescope. Saddle handle bar: Newly designed. In stock. Zenithstar 73 III APO . Fluorostar series. 00. William Optics Fluorostar 91 / FLT91 4 49. 00. There's an initial grub screw to remove which will them expose the screws holding the gauge to the shaft. All New Adjustable Flat6AIII with M92 thread adapter for use with the new WO FLT91 telescope (M48-threaded T-mount not included). 56% Hot. M31 Fluorostar 91 First Light - posted in Beginning Deep Sky Imaging: This is my first post. 35%. In stock. Page 1 of 2 - My Fluorostar 91 has arrived - posted in Refractors : My Fluorostar 91 (FLT 91) just arrived. There's an initial grub screw to remove which will them expose the screws holding the gauge to the shaft. Add to Cart. Fluorostar 91. Fluorostar 91 APO Fluorostar 91 APO Fluorostar 91 APO Fluorostar 91 APO Fluorostar 91 APO Christmas Tree Nebula by By Nihar Nair Christmas Tree Nebula by By Nihar Nair. 540mm. Details and Features. Basic Information: Telescope: William Optics FLT 91 with FLAT 6AIII reducer. 2019 All New Slide-base 50mm UniGuide Scope (with a Unique 1. If they were just sourcing and retailing scopes like some other brands, I'd expect to be able to easily find equivalents to, say, the RedCat 71 or the Fluorostar 91. Fluorostar series; Gran Turismo series New; ZenithStar series; Guider series New; Finder series; Binoculars; Eye Pieces. The three-element optical design features a 91mm aperture using FPL-53 glass that delivers high contrast colour-free images and an impressive 0. Fluorostar series; Gran Turismo series New; ZenithStar series; Guider series New; Finder series; Binoculars; Eye Pieces. The William Optics Fluorostar 132 (FLT 132) is ideal for astrophotography due to the FPL-53 glass objective lens. Cloudy Nights. The urologist can check the injection of contrast agent material. 30 Add to cart; Sale! Fluorostar 91 APO ₹ 203,103. At this point you could technically say you're done, but I also saw a recommendation to se the FLT91's focal length to 21mm as a rough start point. 17Kg. 58 to 0. 9 APO Triplet Refractor Telescope FPL-53. FLO had the FLT 91 in stock in red so I took the plunge, my guide scope is the William Optics 50mm with a ZWO 290MM and the main camera is a ZWO. 3" Rack & Pinion Focuser - Gold Version. Deutsch; Français; Espanol; Currency: USD. Add to Cart. Telescope/Lens: William Optics Fluorostar 91 (540 mm at f/5. Gran Turismo 71 APO. Both about the same price. / per. Arriving in a single box, the William Optics Fluorostar FLT 91 was protected in a robust and well-padded soft carry case. Page 1 of 2 - My Fluorostar 91 has arrived - posted in Refractors : My Fluorostar 91 (FLT 91) just arrived. The hottest star in the cluster has the stellar classification A2 and a visual magnitude of 8. The FLT 91 is an Apochromatic refractor with a focal length of 540 mm and an aperture of f/5. 9) Flattener/Reducer: FLAT6AIII special edition for Fluorostar 91 (432 mm at f/4. View listing photos, review sales history, and use our detailed real estate filters to find the perfect place. SKU. All reactions: 155. 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. Fluorostar 91 APO . 【Refurbished】Fluorostar 91 APO-Space Grey. 00. Seems like an unreleased scope with their new internal focus system. Adjustable reducer flattener Flat61R for Z61 . Pegasus Astro Indigo Filter Wheel (7 position, 2" or 50mm filters) 1 32. William Optics Fluorostar Series: Optolong L-Ultimate filter: ZWO ASI 2600MC PRO: ZWO AM5: In these collections OSC About. P-FLAT6AIII-M92. Tags Bahtinov Mask for William Optics UniGuide 32mm. 3″ Rack & Pinion Focuser ($2000) This is a good example of an APO refractor that is designed and packaged primarily for the Astrophotography market. OTA Weight. 3″ Rack & Pinion Focuser ($2000) This is a good example of an APO refractor that is designed and packaged primarily for the Astrophotography market. Gran Turismo 81 IV. Ken Bates. 1113. William Optics Fluorostar 91 Triplet APO Refractor Telescope with 3. Looking for advice on processing in PixInsight. Apochromatic Triplet Prime Lens. Both set ups look attractive and suitable to my needs. +. 9 telescope has a retracted length of just 390mm (15. 00. I am using the UBP2 optional brackets to hold the miniPC and mount to the bracket. View full description. Mount: Sky watcher EQ6R-pro. The FRA500 has the built in flattener and no back focus issues. Aperture. Service_manual_GE_OEC_Fluorostar_7900. Fluorostar 91 APO Triplet Refractor. · 151 views. Add 30 Minute Product Setup Appointment with Gear Expert to your order. Add to cart. Hope that WO reads related threads here and strive to improve. Download Manual. Images of space, taken by amateurs. I'm testing out a new scope and flattener/reducer. 4. April 14, 2023. 441mm. The new ones do not contain fluorite elements and I don’t know that older models ever did. The three-element optical design features a 91mm aperture using FPL-53 glass. FLAT6AIII special edition for Fluorostar 91. Page 1 of 2 - William Optics Fluorostar 91 Focuser Issue - Response from WO themselves. $284. Optional. · 17 views I think I know the answer to this question, but would like your opinions. Experience the best of the line: the Williams Optics FLT151 Triplet APO f/6. Extended Length. The FLT 91 is a superb instrument and I will be using it regularly when the nebula season returns this summer. Transfer easily. "high performance and looks good doing it, versatility, manageability, afforfability: a better balance than anyone has a right to expect". 72) Filter: Radian Telescopes 2" Triad Ultra Quad-band Narrowband Filter; Mount: Sky-Watcher HEQ5 Pro (Rowan Belt Modification for better tracking and autoguiding)“Fluorostar” is a brand name of a line of WO refractors. Im having trouble finding honest reviews on the Fluorostar 93. 5") 1,998: William Optics Gran Turismo 71 APO Refractor: Triplet Refractor: 71 mm (2. 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. Add to Cart. 00. Lens Type: Apochromatic. 6. The new William Optics Fluorostar FLT 91 is a three element air-spaced apochromatic refractor with a focal ratio of f/5. The STM-coatings and superb quality provide excellent optical performance and unmatched value. Looking to put a Moonlight Nitecrawler on. 99. It is about 70 times more luminous than the Sun. Fluorostar is a water-based and ultra-thin film roof coating formulated with Kynar Aquatec ®, a world renowned. 9)[対物レンズ] 含むFPL53 3枚玉アポクロマート[Strehl Ratio]0. The FLT132 is a different beast in terms of weight for a mount 3-4kg might not seem much but it is the moment of the arm that counts and that makes refractors more difficult to mount well. 4 Videos. 1. 00. 72) Filter: Chroma 36mm HA 3nm Telescope Filter - Unmounted. Fluorostar 120. Optolong L-Pro 2" 1 10. Stellarvue and other higher end offerings are out of my price rangeDescription. One of the advantages of the TSA120 is that it is very lightweight. 00 Regular Price $1,998. Those look so nice. Pending edit 1; Mounts 604 ; Filters 2231 ; Accessories 1396 ;Language: English. WarpAstron WD-17S 1 3. SKU. Wish List Compare. I have since added another 1. 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. Glass is the same, but you can pay extra for the report on the WO. Edited by EasyQuest, 10 September 2021 - 01:34 PM. For the William Optics . This flattener contains a 63 mm opening on one end that threads into the telescope, and an M48x0. Focuser. 91mm. 00 Regular Price $1,568. 7. Add to Cart. - posted in Refractors : Dear all, First and foremost, I dont have a real connection with William Optics nor am I affiliated with them, and I am not a spokesperson for them. To me, it looks like the scope for observers and imagers who want go greater than four inches but cannot afford the FLT 132 cost and weight but want something bigger than the FLT 91 and sticking with William Optics for the colors build quality. Because of. Special thanks to Agena Astro for get. I can only see that the WO has a better focuser (not too much) and a thermometer, other than. Brands / Companies 910 ; Cameras 3302 ; Sensors 465 ; Telescopes & lenses 3721 . 95+ Strehl Ratio. since it works with the FLT 91. 18, 2023 Frames: 57. I've been considering a WO FL 91 for awhile to use only in visual observing. SWAN 2" SWAN 1. William Optics Fluorostar 91 APO - Gold. ขายกล้องดูดาว William Optics Fluorostar 132 F/7 OTA Red ในราคาที่คุณถูกใจ. Guide Star 61 (Soft Carry Case included) As low as $438. Remove the temperature gauge off the telescope. Install the large ring M92-M63 adaptor onto the onto the reducer - take this opportunity to make sure the optics are free from dust and keep it covered until you install it on the scope 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. 4 Image circle: 44mm Objective lens: Quintuplet air-spaced APO (including two ED glass)William Optics Fluorostar 91 Triplet APO Refractor Telescope with 3. More Information. How to install the ZWO EAF on the William Optics Fluorostar 91. William Optics offers another model of apochromatic triplet refractor, the Fluorostar. To see how to install the Flat6Aiii including the correct back focus go to the following link:【Refurbished】Fluorostar 91 APO-Space Grey . 9. The STM-coatings and superb quality provideEasyQuest. Wish List Compare. 8 FR (M63 thread). Wish List Compare. Because the Fluorostar 110 is well suited to viewing nebulae, clusters, large galaxies and comets, we recommend the use of high quality wide angle eyepieces. 9 Imaging APO Triplet Refractor FPL-53 - Australian Authorised dealer Add the. 8 Reducer. Add to Cart. William Optics Fluorostar 91 Triplet APO Refractor Technical Specifications. This is a 2 piece U Bracket that allows a BeeLink MiniPC and Pegasus Astro UBP2 to mount on top of a Fluorostar 91 scope. 1. . Identical to the standard FLAT6AIII optically but with an additional adapter to fit the FLT 91 telescope. Most of the work went into de-emphasizing the stars to make the nebulosity stand out. William Optics Fluorostar 120 - Red. Add to Cart. Vendor William Optics Regular price $1,998 Sale price save $-1,998 Unit price / per . Now Only $1,498. William Optics Fluorostar 91 with FLAT6AIII special edition : $2500: 2023-10-06 12:09:57: Innisfil, ON: 71163: For Sale: Active: Takahashi TSA-120 with Feather touch focuser- mint reduced-. Comment. Utilizing FPL-53 synthetic fluorite glass with STM coatings, this. $284. Wish List Compare. TALK TO AN EXPERT : 919833974700. Telescope/Lens: William Optics Fluorostar 91 (540 mm at f/5. Its always a shame to take off the visual back on these. 00 - $2,897. 9 FLT Apochromatic Refractor is just the excellent midsized visual and photographic instrument sought by discerning astronomers. Lens Type Apochromatic Triplet Prime Lens Focal Length 540mm Diameter 91mmFluorostar 91. I hope this helps. 00. The Esprit seems to be bullet proof (almost) but the Fluorostar has had some reports of poor focuser construction. Email: [email protected] Optics Fluorostar 91 / FLT91 Imaging Cameras ZWO ASI294MC Pro Mounts iOptron CEM70G Acquisition details Dates: Jan. Adjust Distance for DSLR and Mirrorless Camera is 5. William Optics Fluorostar 91mm. . Nevertheless, I use their suggested setting of 5 mm with a 55 mm. Starts at $1998. 00. I would really appreciate any comments that my help with making choice from those that have had some experience with either scope or either. In stock. Add to Cart-23. Gran Turismo 71 f/5. Each subs are fives minutes long and each panel is eights hours of exposure so. Home / William Optics Fluorostar 91 with 3. 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.