Focal reducers shorten the focal length and speed up the focal ratio of a telescope. This will be handy if you also are going to install a Electronic Automatic Focus (EAF . On the back, it features an M48 thread for attaching nearly any camera. william optics focal reducer. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. . Explore Scientific - 3" Field Flattener .7x Focal Reducer for ED APO 152mm 127mm 140mm Refractor. This accessory is a must-have for refractor astrophotography. Provides good illumination and a flat field across 97% of a full frame sensor field of view. . $284.00. Wish List Compare. Aperture is 81mm and focal length is 478mm. This elegantly designed 2" reducer / flattener has been designed to optimise the flat-field imaging performance of William Optics f/6 to f/7.5 refractors. The William Optics Reducer-Flattener is a great accessory that improves image quality by being able to adjust spacing without the need for extension tubes. $625.00. Recommended Accessories. Add to Cart. SHARE. The focal ratio of a telescope represents its light gathering ability, and the Z73 hits the sweet spot. Price. Adjustable reducer flattener Flat73R for Z73 Be the first to review this product In stock SKU P-FLAT73R $284.00 Qty Add to Cart Wish List Compare We found other products you might like! William Optics RedCat 51. Provides high resolution images when used for astrophotography or wildlife photography and is a convenient ultra-portable telescope . 1.25" Diagonals & Prisms; 2" Diagonals & Prisms; Erect Image Diagonals; Hybrid Diagonals & Prisms; . The back focus is listed below for each style of William Optics telescope or other DSLR you choose to use. Hot. William Optics FLT 90 - posted in Refractors : Does anybody have any info when this might be available or know if anybody is taking preorders. Lens Will accept any standard 48mm wide T-ring for your camera. APO triplet optics made with Ohara glass. Reducing factor 0.8X. Twitter. Star Diagonal has been born!Introducing New model William Optics Dura-Bright. The large 50mm clear aperture lens will reduce vignetting to almost nil. Features of William Optics 2" APO Apochromatic Field Flattener and 0.8x Focal Reducer for 66mm to 90mm Refractors WE-FLAT-2: This very elegant 2" reducer/field flattener has been designed for optimal results with the 66mm series of telescopes, although it is functional also with other 80 or 90mm refractors. This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. Provides good illumination and a flat field across 97% of a full frame sensor field of view. That means I'm getting a larger field of view and shorter exposures. This focal reducer and field flattener consists of a four-element multicoated 40mm lens in a metal cell. Hi Everyone, need a little help choosing the right flattener/reducer for the William Optics Zenithstar73. Recommended Accessories. This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. Reviews. That means I'm getting a larger field of view and shorter exposures. IC 1318, The Butterfly Nebula in SHO narrowband false colors. The NEW William Optics Zenithstar 73 APO III features an air-spaced doublet lens with fully multi-coated optics and an Ohara FPL-53 ED glass element for sharp, high contrast images virtually free of false-colour. June 1, 2022. I had found enough evidence of others having success with this on other scopes that I decided to try it. The William Optics Reducer-Flattener is a great accessory that improves image quality by being able to adjust spacing without the need for extension tubes. View fullsize. William Optics Red Dot Finder Kit with Vixen Style Mounting Base . Edited by bthrel, 10 November 2021 - 10:08 PM. Description. The Z61 is the most portable telescope ever made by William Optics, a company with a reputation for building beautiful astrophotography refractors.. Spend $300 and get free shipping. . Zenithstar 73II APO New Adjustable Flat73A for Z73 $218.00 Super high precision "COPPER" T mount for Canon EOS full frame Cameras $86.00 Yes, using filters of any kind in your imaging train will alter your back focus slightly. . William Optics FLT 156 mm f/7.8 APO Triplet Refractor with 3.7" R&P Focuser - Red Skip to content The Perfect Portable Astro-Photography Mount - Introducing The Sky-Watcher Star Adventurer GTi - Pre-Order Here and Lock Your Place In Line! le parrain 3 film complet en franais gratuit. William Optics 2" APO Field Flattener and 0.8x Focal Reducer WE-FLAT-3 is part of our massive variety of . The William Optics Adjustable Field Flattener improves the flat-field imaging performance of William Optics GT71, GT81, Z81, and Z103 refractors. Free US Shipping. databricks interview assignment. Focal ratio is f/5.9 native or f/4.72 with the recommended 'William Optics Flattener Reducer 6' at 0.8x (139 from FLO). More details on the William Optics page under Products > Accessories > Flatteners William Optics 2" APO Field Flattener and 0.8x Focal Reducer is especially recommended for users of the William Optics Megrez 80, 90 and 110. Browse our full product choice for the tools and merchandise you need to tackle the task at hand. The William Optics Redcat Z51 (left) compared to the Sky-Watcher Evoguide 50ED (right). New William Optics Flattener 68III . Product Details. This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. So I was wondering if I could get away with the Flat6 0.8 reducer which does say it works on scopes 70 - 80mm f/6 but doesn't list the ZS73 . Telephone (+233) 555-659-990. comment imprimer en livret sur word. on William Optics 2" APO Field Flattener and 0.8x Focal Reducer WE-FLAT-3 | + FREE Shipping over $49! The William Optics RedCat 51 Petzval APO is unlike any other telescope on the market. New Gran Turismo 102 (Gold) OTA only $1,998.00 New Zenithstar 126 APO (New 3.3 inch R & P Focuser) The APO triplet optics of the Flat6AIII are made with Ohara glass and fully multi-coated to provide good illumination and a beautifully flat field across 97% of full frame sensors. Sky-Watcher Field Flattener for EvoGuide 50ED (4) 95.00 Add to Basket. Versatile f/6.9 native focal ratio or f/5.5 when used with 0.8x flattener . Askar f/3.9 Full Frame Reducer for FRA400/5.6 (1) Reviews. on William Optics 2" APO Field Flattener and 0.8x Focal Reducer WE-FLAT-3 | + FREE Shipping over $49! . William Optics Megrez 120 f/7.5 - posted in Refractors : Hi, what do you think about William Optics Megrez 120 f/7.5 for DSO imaging? Using the FLAT73R reducer/flattener greatly increases the available field of view. Free US Shipping. +1-800-504-5813 Contact Check Order Status. The William Optics Zenithstar 73 APO has an f-ratio of F/5.9. Facebook. Antares 0.63x Focal Reducer for F/10 Schmidt-Cassegrain - SCTFR. The Vixen model does not include a carry case orBahtinov mask in the . All New Adjustable Flat6AIII (T-mount not included) . . William Optics give an overall distance of 71.06 mm from rear off the concave lens on the reducer to the chip on the camera, 6.68 mm from the concave lens to the flat flange on the reducer this leaves 64.38 mm left according to William Optics, i`m using a atik ccd camera which has around 13 mm from front of camera . Designed for APS-C size or smaller imaging chips (not for use with full-frame cameras). 219.00 Add to Basket. Product Details. Add To Cart. Add to Cart. . Newer GT71, GT81, Z81, Z103 scopes that have a female M63 thread. Share. If you are looking for brighter and wider views or want to shorten your exposure time a reducer is the best way to go. $101 . 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. The NEW William Optics Zenithstar 81 APO features an air-spaced doublet lens with an Ohara FPL-53 ED glass element in a CNC machined ultra high precision lens cell with fully multi-coated optics for high resolution, high contrast images virtually free of false-colour. Posted 18 March 2022 - 12:50 PM I've been successfully using this focal reducer with my William Optics GT81 since about 2016, This focal reducer is rated x0.80 and with the Wilialm Optics GT 81 scope FL 478mm I've therfore always calculated to be an equivalent FL of 382mm (478 x 0.80). Brand new adjustable field flattener/reducer for the William Optics Zenithstar 61 OTA. Correctors, Focal Reducers & Flatteners; Diagonals & Prisms. with a thumbscrew to lock it into place! This adjustable William Optics 0.72x Reducer/Flattener is a revolutionary new device suitable for use with f/6 to f/7.8 focal ratio refractors such as the WO GT153, FLT132, and 102GTS. Wish List Compare. Note: All images are EAA images with no post processing and no focal reducer/flattener .. In Stock. Shop for focal reducers, coma correctors, and field flatteners from your favorite brands Tele Vue, Baader, Antares, . Product Description. Additional Information . William Optics GT71 APO is a f/5.9 air-spaced triplet FPL-53 apochromat. This high-quality flattener has been engineered and CNC machined for usage with William Optics' GT153, FLT 132, 102GTS, and other APO refractors. . Specifications. Adjustable Flattener Reducer Flat73R for ZenithStar 73. The back focus is listed below for each style of William Optics telescope or other DSLR you choose to use. Purchase your new William Optics 2" APO Field Flattener and 0.8x Focal Reducer WE-FLAT-3 from Opticsforyou.com today and you will appreciate the easy checkout process, . Just remove the three screws on the focuser adapter, take off the adapter, and thread the focal reducer/field flattener on in it's stead. The William Optics Zenithstar 61 is a doublet apochromatic refractor telescope that excels in deep-sky DSLR astrophotography. This Adjustable Flattener is made for use with the ZenithStar 61 telescope. Astro Essentials 0.5x 2" Focal Reducer. Shop William Optics 2" APO Apochromatic Field Flattener and 0.8x Focal Reducer for 66mm to 90mm Refractors WE-FLAT-2 | 5 Star Rating on 1 Review for William Optics 2" APO Apochromatic Field Flattener and 0.8x Focal Reducer for 66mm to 90mm Refractors WE-FLAT-2 + Free Shipping over $49. I have a used, but like-new William Optics .8x Focal Reducer/Field Flattener III for the WO 72mm Megrez, WO Z70, Megrez 80, Megrez 102 and FLT-110 (not compatible with the M110). I have a William Optics Zenithstar 61 telescope. Step 5: set the Fluorostar 91's focal length to 21mm. Astro-Multispectra Series; Dual . Ex Tax:74.80 . That means the base of the mounting threads of the focal reducer needs to be 55mm from the camera sensor to achieve the design reduction . For example, many focal reducers designed for f/7 or f/8 ED refractors such as those from Tele Vue, William Optics, Sky-Watcher, and Meade are designed to have a working distance (or back focus) of 55mm. The Flat6AIII has 2" threads on the opposite side to accept a 48mm (Wide) T ring for your DSLR. Our Price: $768.00. To calculate how much back focus spacing you need to add, take the thickness of the filter and divide it by 3. Dr. Flat Master x0.8 Reducer/Flattener for GSO RC telescope . Features of the William Optics Adjustable Field Flattener. The FLT132 is also offered with a . 11 were here. Add to Cart Show more Service & Support . $278 . Features of William Optics 2" APO Apochromatic Field Flattener and 0.8x Focal Reducer for 66mm to 90mm Refractors WE-FLAT-2: This very elegant 2" reducer/field flattener has been designed for optimal results with the 66mm series of telescopes, although it is functional also with other 80 or 90mm refractors. Sections of this page. Fully multi-coated to provide bright and flat field across 97% of full-frame sensors. 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. Avg of 4.8 Stars on Google Reviews Price Match Guarantee Free Shipping 1000's of Products . Email. This is a Fan Page for William Optics Scopes. Description. WO Flat6A lll will. Standout Features Telescopes Canada. Prime Focus William Optics 0.8x Reducer / Flattener v2 William Optics 0.8x Reducer / Flattener v3 In my experience with the Z73, the combination of 430mm at F/5.9 was just right for collecting long exposure astrophotography images of the Butterfly Nebula and Heart Nebula. Designed with nearly Full frame chip-size DSLR cameras in mind. Twitter. WO Flat6A lll will. 39.00 Add to Basket. Categories Categories Brands Brands. Some scopes, including the William Optics Star and RedCat series, do not require a focal reducer or field flattener for astrophotography. 2" DCL-52 Digital Camera Lens Adapter with 75mm Focal Length from William Optics for Digital Camera Astrophotography This innovative digital adapter .. 89.76. New Adjustable Flat6Alll (T-mount not included) This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. WO-D-DIG2D-C-DB-T Add to Cart. WO 0.8X Focal Reducer CAMERA: ZWO ASI1600MM Cooled Pro GUIDING: Lacerta M-Gen II Autoguider. Add to Cart Add to Wish List Antares. Simply loosen the set screws on the side and your adapter will rotate 360 deg. $479.99. Adjustable design, for perfect back focus it can be used with other models of refractor 48mm filter ready. VAT. $ 359.00 incl. I use a 1x Hotech flattener (which in fact can be used for any scope between f/5 and f/8) on my William Optics 81 GT IV and have been happy with it - although it isn't a reducer (so focal length is the native 478 mm). Shop for focal reducers, coma correctors, and field flatteners from your favorite brands Tele Vue, Baader, Antares, . William Optics 0.72x Reducer / Adjustable Field Flattener 8 for GT153, FLT 132 & 102GTS # P-. I am after one that does both jobs so that rules out the dedicated Flat73 which is just a flattener! . Steve says: "The William Optics Zenithstar 61 is a portable, well-made refractor with a short focal length of 360mm making it ideal for wide-field observations. plus shipping costs. With either reducer (both were measured to produce 0.8x), the image covers 260' x 173' and the diagonal 313'. The focal length of the Vixen FL55 is 239mm, with a focal ratio of F/4.3 (with the optional reducer used). The Evoguide wins hands down here. Revolutionary new WO x0.72 Adjustable Reducer/Flattener made for f/6 - f/7.8 refractors. Step 1: assemble the William Optics FLAT6AIII reducer. FMC tripllet APO design. Add to Cart. . Add to Cart. In Stock. It allows the position of the 2 element lens system to be moved within the barrel so that it can be easily set at the optimum 66mm-86mm back focus distance (distance from flattener lens to film or CCD plane) appropriate for the focal length of the . Designed with nearly Full frame chip-size DSLR cameras in mind. +1-800-504-5813 Contact Check Order Status. Add to Cart . Antares 0.7x Focal Reducer for F/10 or Higher Telescopes - FR2-0.7. What is this doing, and what magnification would I get with a 25mm eyepiece? This accessory is a must-have for refractor astrophotography. It works well visually too, CA is not detectable by my eyes. le parrain 3 film complet en franais gratuit. The Reducer/Corrector is f/6.3 for C5, C6, C8, C9 and C11 telescopes and f/7 for the C14. Explore Scientific - 5x Focal Extender 1.25" Barrel - 4 Elements. William Optics GT71 71mm f/5.9 Triplet APO Imaging Package + FREE International Shipping. Vixen Focal Reducer For VC200L 241.00. . William Optics 0.8x Reducer Flattener 7 (Black) for FLT132 and GT153 only GT102 (optional) $658.00 This revolutionary new WO FF68III Adjustable Flattener was made for 6 -7.5 F ratio refractors. Posted August 14, 2015. Full frame size. Focal reducers are great for astrophotography and visual use. leroy merlin catalogue de a z . It will provide good illumination and flat field across 97% of full frame sized sensors. Our Price: $768.00. IC 1318, The Butterfly Nebula in SHO narrowband false colors. This compact refractor bridges the gap between a camera lens and a telescope. Flattener / Reducer; Astronomy Filters. . William Optics produce the AFR-IV Adjustable 0.8x Reducer/Flattener for 500-1000mm refractors. It features a 45mm image circle for use with sensors as large as full frame, while also retaining your ZenithStar 61's native focal length! In this review, I'll tell you why I think the William Optics Zenithstar 61 is a top contender when it comes to . x0.8 Reducer Flattener 7A Be the first to review this product In stock SKU P-FLAT7A $658.00 Adapter M54 x 0.75 Flattener Adapter + $49.00 M68 x 1.0 Flattener Adapter + $49.00 Qty Add to Cart Wish List Compare We found other products you might like! William Optics x0.8 Adjustable Reducer Flattener for ZS73. William Optics 0.72x Reducer / Adjustable Field Flattener 8 for GT153, FLT 132 & 102GTS # P-. Cyclops Optics provides exclusively FREE screw smoothing service to all William Optics telescopes. Lens $845.00. This Vixen Focal Reducer takes the standard 1800mm (f/9) focal length down to 1278mm (f/6.4). with a . I'm using it with a 0.6x flattener-reducer. Revolutionary new WO x0.72 Adjustable Reducer/Flattener made for f/6 - f/7.8 refractors. It will deliver an image circle of >44 with a 3624 mm sensor. Table 3 shows the properties of each focal reducer and summarizes which reducer works with which William Optics telescope. Purchase your new William Optics 2" APO Field Flattener and 0.8x Focal Reducer WE-FLAT-3 from Opticsforyou.com today and you will appreciate the easy checkout process, .