single exposure, 15 seconds at ISO 1600, with flattener. $829.00. This is not an issue for visual observations as eyepieces can partially compensate this aberration. MSRP: Was: Now: $969.00. Reducers and field flatteners have an optimum spacing between the camera sensor, and the rear of the unit. 48mm T mount for Canon EOS - Space Gray. TAKAHASHI REDUCER / FLATTENER FOR MEWLON. Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range. Alluna Optics; Astro-Physics; Baader Planetarium; Borg; Celestron; Explore Scientific; Optec (CCD Photo Accessories) Corrective optics are a very important component, especially in astrophotography. The new The flattener is all you would want with a crop sensor. 1 of 1. Full frame size. ASKAR 0.7x FLATTENER AND REDUCER for FRA400 & FRA500. Information; Reviews (0) Article number: TKA20580B: Availability: Order Now! A field flattener compensates for this, so you get less field curvature and an image that is closer to being in focus over the full field. A reducer is in a sense the opposite of a barlow: It focuses the light from the scope to a smaller area, the effect is a shorter focal ratio and a smaller image circle. It will provide good illumination and flat field across 97% of full frame sized sensors. Containing Multi-Coated optics and housed by a sturdy but light weight aluminum body, Field Flattener, Focal Reducer. On the contrary, when a refractor is used for astrophotography, a curved field will 0.77x Reducer/Flattener for Esprit 120 0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. SCA Damps Vibration The all-around adjustable tightness rubber contact damps unwanted vibrations from the telescope provides you a sturdy attachment on your telescope for a stable image capture. The Reducer/Field Flattener offers a wider field of view through your system, working to decrease the focal length of your system. Field Flattener, Focal Reducer. Designed specifically for SV503 70mm, 80mm, and 102mm f/7 ED Refractor. Standard 2" filters can be added to the reducer/flattener when imaging. SkyWatcher Esprit 80 Field Flattener . There are four new models of the Astro-Tech focal reducers and field flatteners designed to fit specific Astro-Tech refractor telescopes which include: AT80ED .8x Reducer/Flattener: The dedicated fully-multicoated Astro-Tech AT80EDRF converts the 560mm focal length f/7 Astro-Tech AT80ED refractor into a 448mm f/5.6 system. Toggle navigation 0. Low Stock. Inside the case is the focal reducer with caps on both ends. Celestron 0.7x Reducer for EdgeHD 925 (1) 439.00 Add to Basket. Full frame size. For the correct adjustment the reducer/flatener includes a adjustment flange. More On The Way . Part Number: 20225. Much appreciated. 2) Remove the reducer and shoot the galaxy in luminance. The field flattener/focal reducer offers 55 mm of back focus from the rear face of the device. WO Flat 6AIII will provide good illumination and flat field across 97% of VAT) PlanoStar 0.8x Reducer for 115 EDT-X with M92 3.7" Focuser - M72x1 rear female thread 299. Free US Shipping. The field flattener/focal reducer offers 55 mm of back focus from the rear flange. im considering to buy the fcd100 102mm explore scientific apo carbon fiber telescope and want to add a field flattener and reducer to this telescope. Optimised for the Sky-Watcher Evostar ED PRO (and equivalent Equinox) APO refractors. It reduces the telescopes focal ratio by a factor of 0.63. Enhance your astrophotography experiences with the Explore Scientific 3in Field Flattener w/ .7x Focal Reducer for ED APO 152mm F/8 to reduce the curvature when acquiring various images. It will provide good illumination and flat field across 97% of full frame sized sensors. 3) Resize and co-register the RGB to the luminance in Registar. Looks like the Skywatcher Field Flattener works well, and at a very reasonable 65 from FLO I think I'll give that ago first before I trying a reducer/flattener as my budget is a bit small for now. Key Features. William Optics Adjustable 0.8x Reducer / Field Flattener 73R for Z73 Telescope # P-FLAT73R . 169.00 Inc VAT & Warranty. Toggle navigation 0. New Adjustable Flat73A for Z73. The Explore Scientific 3in ED APO 152mm F/8 Field Flattener w/ .7x Focal Reducer reduces your f-ratio by .7, which results in a wider field of view, brighter images and less Designed with nearly Full frame chip-size DSLR cameras in mind. Free Shipping Available . This optical device is a field flattener (or reducer/flattener). While this Astro-Tech #ATR8 0.8X reducer/field flattener is designed for prime focus astrophotography with quality f/6 focal ratio apo refractors such as the Astro-Tech AT72ED and AT130 apo, it will also work well with Astro-Tech and other brand refractors in the f/5.5 to f/7 range that use a 2" focuser. Designed specifically for their Esprit 120 ED APO f/7 refractor optical tube, the Sky-Watcher 0.77x Focal Reducer / Flattener is an indispensable dual-purpose accessory for astrophotography and astroimaging. The new Starizona EvoFF field flattener turns the Skywatcher Evoguide 50 into a sharp, portable, wide-field imaging scope. $ 279.95. A field flattener flattens the field of view and ensures round and sharp stars all around the frame. 1 review. Explore Scientific MPCC Field Flattener with Canon EOS T2 SkyWatcher EvoLux 82ED 0.9x ED Focal Reducer/Flattener . ASKAR 0.7x FLATTENER AND REDUCER for FRA600. Field Reducers and Flatteners from Takahashi, Optec, Borg and TeleVue. WO Flat6A lll will provide good illumination and flat field across 97% of full frame sized sensors. $218.00. Reducers / Flatteners. Please be noted that these are just examples for 55mm back focal length, you need to know the back focal length of your reducer and flattener first and then arrange the adapters. Sale Sold out. Tele Vue DIOPTRX Astigmatism Corrector - 2.50 # DRX-0250 . Takahashi's field flattener uses a two element design. 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. a modified 5D and the FLT110. For the Perfect field for astrophotography, all at BuyTelescopes.com. Explore Scientific s 3 Field Flattener .7x Focal Reducer is a multi-faceted accessory designed to enhance your astrophotography experiences. TS PHOTOLINE 2" Flattener and Field Corrector for Refractors With the TSFLAT2, a professional field corrector for apochromats, EDs and normal Fraunhofer achromats is available to the astrophotographer. Using a field flattener is a no-brainer: just screw it at the back of your telescope or insert it in the telescope using a nosepiece. Thats it. But there are a few technical things to sort out when using a field flattener: Before buying a telescope and a flattener, you need to verify how much backfocus is available for that combination. Add to Cart. Vendor Explore Scientific MFG Part: FFFR507X-00. SKYWATCHER FLATTENER & REDUCER FOR EVOLUX 62ED. $408.18. 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. Tele Vue 0.8x Photographic Field Reducer and Flattener. Super high precision COPPER T mount for Canon EOS full frame Cameras. I think with the Equinox at f6.25 it should be good enough to get started with. Price: $179.00 . Designed with nearly Full frame chip-size DSLR cameras in mind. Figuring out the correct back focus for your telescope can be a daunting task to beginners and experienced astrophotographers alike. By Brian Fulda SKU: TKA31587S. Full frame size. Sky-Watcher has taken the last 8 years worth of user input and data from their ground-breaking portable AZ-GTi and Star Adventurer camera tracker and put it to good work in their next portable astroimaging platform. Reducer / Flattener. Important Note: The following products were all designed for an optimum 55mm back focus. Reduces the telescopes focal length by a factor of 0.85x. $240.00. SKU: BAA-FF-M68 . The Meade f/6.3 Focal Reducer/Field Flattener (4-element, 41mm diameter, multicoated lens elements) # 07545 threads on to the rear cell of any Meade SCT telescope or to other Schmidt-Cassegrain telescope brands. This reducer/flattener is optimized for our SVR102T and SV102-ACCESS refractor telescopes. Stellarvue Focal Reducer / Field Flattener for SV70T. Zenithstar 73II APO. 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. The Flat 6AIll will provide good illumination and flat field across 97% of full frame sized sensors. Hyperion 12.5" Hyperion 16" Hyperion Focal Reducer EvoFF v2 - Field Flattener for SkyWatcher EvoGuide 50ED Starizona. Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended 55mm back focus Drops f/ratio from native f/5.8 (420mm) to f/4.93 (355mm) Reduces exposure time by 38% compared to native f/5.8 5.8 x 3.87-degree field of view when used with a full frame camera 3.79 x 2.53-degree field of v Atlanta Hobby Ships Worldwide! $298.00. Contact Us. May be used to increade field of view and reduce magnification for visual applications. $119.00 Viewing 1 - 24 of 91 products. $29.00. Free US Shipping. This flattener from Takahashi is made as a universal replacement for FS/FC flatteners. Be sure to select the appropriate flattener/reducer for your particular telescope. * Sign up for our Newsletter. It's quite expensive.) For the Perfect field for astrophotography, all at BuyTelescopes.com. Provides much improved field-edge correction. Fitting is M48 at both ends. The flattener is installed between the telescope and the camera. A field flattener compensates for this, so you get less field curvature and an image that is closer to being in focus over the full field. 0.85x Focal Reducer/Flattener. For the Perfect field for astrophotography, all at BuyTelescopes.com. Contact Us. These reducers can also be used for visual observing with SCT scopes with eyepieces with a field stop as large as 24-27mm. For both imaging and visual observing, these reducers also improve image sharpness at the edge of the field by correcting for coma and field curvature. Designed with nearly Full frame chip-size DSLR cameras in mind. The M42x0.75 adapter is 6.25 mm thick. The 2" Field Flattener Accepts 2" Filter Thread 1) Shoot the target with flattener in RGB or LRGB. Meade's Focal Reducer/Field Flattener is a fully multi-coated, 3 element design to help the astro-photographer capture wide field photographs of the night sky with the Series 6000 APO's. Test of the TSRed279 reducer. More On The Way . Sky-Watcher .85x Reducer/Flattener for Evostar-150ED Pro. Astro-Physics. Field Reducers and Flatteners from Takahashi, Optec, Borg and TeleVue. Flattener / Reducer / Correctors. Covers for Astro-Physics 2.7" Field Flatteners with 6x7 Outer Bayonet, set of 2. Named a Sky & Telescope Hot Product of the Year for 2010, the Astro-Tech photographic field flattener reduces the normal field curvature inherent in all refractors to provide you with images that are sharply focused out to the very corners of your DSLR or large format It will provide good illumination and flat field across 97% of full frame sized sensors. The M42x0.75 adapter adds 3 mm, so the sensor needs to be 52 mm from the face of the adapter. Vendor Explore Scientific MFG Part: FFFR507X-00. $544.55. Field Flatteners and Reducer/Flatteners. M48 Field Flattener for Esprit-120 239.00 199.17 (ex. Reduces Focal Length by 20%; Widens Field & Shortens Exposure Time; Shop B&H for our huge inventory of Focal Reducers & Field Flatteners from top brands like Vixen Optics, Sky-Watcher, Celestron and Tele Vue, at great prices. Reducer/Field Flatteners For CCD, photographic, and visual applications. The amount of reduction is simply the percentage by which a reducer shortens the effective focal length of a telescope and is calculated as (1 Reduction Factor) x 100%. Our Price: $284.00. The flattener threads into the Feather Touch or Stellarvue 2.5 focusers (FSV25/FSV25B). Designed with nearly Full frame chip-size DSLR cameras in mind Atlanta Hobby Ships Worldwide! In this article, well go over why back focus spacing is so important to get right, everything to consider for back focus spacing, and how to use adapters and spacers to get your back focus spacing perfect. MicroTouch Wired MicroTouch Wireless Hyperion Astrograph Hyperion Astrograph. To use a telescope for photography an optical device is needed to convert your telescope from a visual instrument to a photographic camera lens. 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, including the new FLT91 telescope. Used in prime-focus imaging, reducers increase photographic speed while flatteners decrease image curvature away from the center. The SkyWatcher field flattener and reducer for the Evostar 72ED transforms your telescope into a professional astrograph. Testing the TSAPO80F7 refractor with the TSFLAT2 flattener. For 80/100/120/150ED DS-PRO. Use in conjunction with a Sky-Watcher DSLR-M48 Ring Adaptor. The reducing factor is 0.8X. Model: skywatcher_field_flattener. Quick view. 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. This reducer/flattener has a standard 42 mm filter thread. 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. The flattener helps correct spherical aberration. Free Shipping Available . SKU: SFFR-70APO. Meade f/6.3 Series 4000 Focal Reducer/Field Flattener. Low Stock. Hyperion 12.5" Hyperion 16" Pixel Resolution + Field of View Equivalent Exposures Ideal Exposure Time Eyepiece Projection Misc Misc. TAKAHASHI REDUCER / FLATTENER FOR MEWLON . Takahashi has designed the 1.04x flattener to work only with the FS and FC telescopes. They turn almost every refractor, Newtonian or other telescope into an astrograph. $635.45. A reducer is in a sense the opposite of a barlow: It focuses the light from the scope to a smaller area, the effect is a shorter focal ratio and a smaller image circle. B&H # TERF102 MFR # RFL-4087. It helps a lot with a full frame sensor but is not full frame perfection. $86.00. All Field Flatteners and Focal Reducer have a specification for the distance between the CCD. The Antares focal reducer comes in small box. Required exposure times are hence shorter and the optics 'faster'. It will also work with a standard 2 focuser for earlier models. Explore Scientific Zero X Field Flattener 2 Inch M48 for ED80 and ED102. SKU: EXP-FFFR507X-00 . Curvature of field and the effects of lens aberrations distorting the stellar images towards the edge of the field can be compensated for by the use of either Field Flatteners or Reducer/Flatteners (called reducers from now on). 3" Field Flattener .7x Focal Reducer for ED APO 152mm 127mm 140mm Refractor . The EvoFF is compatible with cameras having APS (28mm) or smaller sensors. (Distance from flange surface to film or CCD plane). (The L will pick up outlying faint fuzzies but you wouldn't need it if there weren't any.) 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. Refractors are affected by field curvature no matter what brand or diameter. The most important fact however is that the William Optics TMB field flattener is sharp to the very corner of an EOS 5D full frame camera on the FLT110, no modest feat for any telescope to achieve and excellent news for those amateurs wanting to image with e.g. Full frame size. To connect to the 2.5 hex focuser, purchase item number 510366. Field Reducers and Flatteners from Takahashi, Optec, Borg and TeleVue. 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. Reducers and field flatteners have an optimum spacing between the camera sensor, and the rear of the unit. Celestron .7x Reducer Lens for EdgeHD 925 # 94245 . Field Flattener, Focal Reducer. The CAA 0.8x Reducer/Field Flattener is an optimal accessory for those who are interested in astrophotography- Perfect to use with any camera of your choice! Apex ED .65 Reducer Flattener Motor Focusers Motor Focusers. New for August 2021, thread on adatper tops to choose between 42mm T-threads and 48mm T-threads. The new FC/FS Multi-Flattener 1.04X is designed as a universal replacement to previous flatteners in the FS and FC series of fluorite doublet telescopes. Antares f/6.3 SCT Reducer/Corrector. single exposure, 15 seconds at ISO 1600, without flattener. Provides FSQ-106EDX4 like field flatness on the FSQ-85EDX . Viewing 1 - 24 of 91 products. Here I show you what to measure and how to measure it. In Stock. The 0.8X focal reduction converts the an f-7 refractor to f-5.6. Petzval telescopes aside, where the field curvature is corrected in the telescope, if you are using a refractor for deep sky astrophotography, then you need a field flattener to correct for the field curvature of your instrument. In stock. 177g / 6.24oz / 0.39lb. The connection to your telescope and camera occurs over an M63 x 1 thread. fully illuminated and corrected field diameter D=42mm; This Reducer/Flattener is designed for Triplet APO telescopes. Designed with nearly Full frame chip-size DSLR cameras in mind. This Flattener was designed to reduce the focal length of the Meade Series 6000 APO Refractors to expand the field of view with the camera being used. $86.00. SKU: 100021299. The non-reducer flattener's back focuse distance, T-Thread shoulder to the CCD chip, requirement is 55mm. All New Adjustable Flat6AIll field flattener (T-mount not included) Field flattener / X0.8 Reducer. Toggle navigation 0. Once installed, you can add additional accessories like T-Adapters, 1.25 Visual Back, Star Diagonal, or Off-Axis Guider. An important advancement in high-resolution focal reduction systems, the Meade 4-element, multi-coated f/6.3 Focal Reducer/Field Flattener threads on to the rear cell of any LX90, LX200 or other Schmidt-Cassegrain model and is typically used with an Off-Axis Guider or T-Adapter. Browse our full product choice for the tools and merchandise you need to tackle the task at hand. Sale Sold out. 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. Integral T-Ring adaptor thread. MicroTouch Wired MicroTouch Wireless Hyperion Astrograph Hyperion Astrograph. The flattener has an optical diameter of 45.5 mm and offers reduced vignetting compared to narrower T2 types. Explore Scientific 3" Field Flattener .7x Focal Reducer - FFFR507X-00. The Reducer/Field Flattener offers a wider field of view through your system, working to decrease the focal length of your system. 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. 229.00 Add to Basket. (That's the fly in the ointment if you don't have it. Availability - In stock. Apex ED .65 Reducer Flattener Motor Focusers Motor Focusers. Add to Cart. The field flattener corrects the inherent spherical aberration of curved lenses which, if left uncorrected, causes images to appear distorted at the edges of the field of view. Price: $800.00 . Reducer / Flattener. As a focal reducer, this device will reduce your f-ratio by .7, which results in a wider field of view, brighter images and less exposure time. The new v2 of the EvoFF has a 55mm backfocus and is now compatible with DSLRs as well as popular astronomical CMOS and CCD cameras. VAT) Out of stock NEWTONIAN Coma Corrector 0.95x Maxfield 190.00 158.33 (ex. A high-quality, non-focal-reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios around f/5.5 to f6.0. The field flattener corrects the inherent spherical aberration of curved lenses which causes distortion at the edges of the field of view. Full frame size. The Super-Transmission-Coated with 2-element lens system was designed and produced by William Optics, the inner flattener lenses can be set at the optimum 66mm-86mm back focus distance (Distance from flattener lens to film or CCD plane). 0 Items Home / Takahashi Field Flattener - FS60CB Reducer (.72x) $650.00 +-Add to cart. Sky-Watcher Field Flattener for Esprit-100. The flattener slips into the 2" focuser. The Reducer/Corrector is easy to install by threading the unit onto the rear cell of your Schmidt-Cassegrain telescope (or the reducer plate of the C11 and C14). Super high precision COPPER T mount for Nikon full frame Cameras. This revolutionary new WO AFR-IV Adjustable Flattener / 0.8x Reducer was made for 500-1000mm refractors. Orion ED80T CF. The CAA 0.8x Reducer/Field Flattener is an optimal accessory for those who are interested in astrophotography- Perfect to use with any camera of your choice! Canon 6D. Using Photographic Field Flatteners (and Reducer/Flatteners) Refractor telescopes are made to be used visually with an eyepiece. Make sure to look at full selection of Telescope Accessories from William Optics that we provide at everyday discount prices. Add to cart quickshop. For the Perfect field for astrophotography, all at BuyTelescopes.com. Recommended for our 127mm and 152mm refracting telescopes, this field flattener/focal reducer boasts fully multi-coated optics and comes with 2 adapters to accommodate different focuser sizes. Orion Field Flattener for Short Refractors. This reducer/flattener is optimized for our SVR102T triplet lens and it will work with other f-7 refractors. The Takahashi FS-60C Reducer-C 0.72X converts the FS-60C from an f/5.9 to an f/4.2 wide field imaging instrument. The APO triplet optics of the Field Flattener and Reducer was made with Ohara glass and fully multi-coated to provide good illumination and a beautifully flat field across 97% of full frame sensors. * Sign up for our Newsletter. $479.99. The Reducer (for focal length reduction) is an optical accessory that allows a more favourable aperture ratio. Availability - In stock. Our Price: $134.00. SKU: 100021299. It will provide good illumination and flat field across 97% of full frame sized sensors. 1 Review. Explore Scientific. Notice: About small format, 174, 178, 385, 290, 224, 185, etc. Baader - M68 Field Flattener, Works with Zeiss APQs and Baader APO 95/560 Travel Companion . The TS Universal 2-Inch Field Flattener for Refractors from f4 to f9 is a flat field imaging corrector for almost ALL refractors with a 2 focuser, producing pinpoint stars from centre to edge!
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