Hotech field flattener. 2F/L Scope which I absolutely love.

Hotech field flattener T-ring thread Field Flatteners for Explore Scientific refractors - posted in Beginning Deep Sky Imaging: Hello All,I have been pondering the purchase of a field flattener for my ES102ED. I also have the ASI1600MM Pro Kit which needs to be put together as shown: Now. It's close, but no cigar. £132. High Quality Optics with the Most Reliable and Secure Best Field Flattener for Evostar 72ED? - posted in Beginning Deep Sky Imaging: Im trying to add a field flattener to my Evostar 72 ED. I am attaching hotech sca directly thru nikon bayonete adapter. Any help here would be much appreciated! Clear and dark skies. Field flattener for ED80 - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hello friends, and thanks in advance. #100, CA 91730 Rancho This TS FLAT2 Field Flattener is designed for APO/ED and Fraunhofer refractor telescopes with focal ratios of f/4 to f/9. so far i have had Starizona Evo-FF V3 Field Flattener for Skywatcher Evoguide 50 (1) £122. If I put any more distance between the flattener and camera I can’t achieve focus. Reducer > Hotech > Hotech 2" SCA Field Flattener Hotech Artikel I decided to get this non-reducing flattener. It gives sharp stars across the field, but I'm also using a tiny sensor (ASI183MM Pro). 8x field flattener does not produce a fully flattened field (for say even with an APS-C sensor). There has to be a flattener made for full frame sensors. I also have the es 0. Location: NEWCASTLE NSW Australia. What are your experiences and recommendations. 4 out of 5 stars. I wonder what others who may have used it think of it, in response to your query Field flattener spacing for AT72EDII - posted in Beginning Deep Sky Imaging: Ive got an AT72EDII and Canon T3i DSLR. delivering an impressive 72x magnification without compromising field flatness to offer bright, clear images throughout the entire field. 8 reducers both thread into the telescopes to make a firm connection. HOTECH. Here is a The field flattener also works surprisingly well with the 6", 8", and 10" Astro-Tech Ritchey-Chrétien astrographic reflectors. more info on Hotech SCA Field Flattener - posted in Equipment (No astrophotography): Perhaps I can crowdsource this piece of information Ive been after for some time (hotech doesnt respond to my emails). The slight deviations from round here are the result of thermal effects (“local seeing” effects) and not a cause for concern. 85x Focal Reducer & Corrector for EvoStar 80ED which requires an additional adapter. Is anyone using an alternative to these two? Field flattener question, is the correct / normal? - posted in Experienced Deep Sky Imaging: I finally had an opportunity to attach my Hotech SCA Field Flattener to my image train and work out the correct spacing. AT115 EDT and Flat Field Question - posted in Refractors : Hi Everyone, I have heard that the AT115 EDT combined with the 0. It is compatible with 2" focuser drawtubes and its barrel is conveniently threaded for use with 2" filters. 72x Reducer/Flattener 8 is a high-quality equipment item created to improve your experience in astrophotography. But I have the GT71 and have been considering the Hotech SCA: I use the Orion field flattener on my Evostar 72. I recently got an Astro-Tech 8 RC and am wondering if I am able to use the HOTECH SCA field flattener with my 8 Astro Field-Flattener - posted in Beginning Deep Sky Imaging: Hi there. Baader Adapter 6x7 Flange to M68i - for TEC/AP Field Flattener. VAT plus shipping costs. Fully multi-coated two-element high efficiency flattener lens This field flattener is fully multi-coated on a two-element lens allowing the most efficient light transmission without sacrificing the precious light collected from This 2" field flattener, a fully multi-coated two-element lens, produces the highest light transmission efficiency without giving up any valuable light your telescope has gathered. I had to buy a M48 to M42 t-adapter to get the flattener connected to the camera. 00. At focus, stars were crisp and chromatic aberration (CA) was minimal. 5 +/- 5 mm and the flange to sensor distance in the Canon dslr is 44 mm. 2 is a big reduction and the back-focus on the flattner reducer would likely be critical. Posts: 33,284 no #8 Hotech Field Flattener and SV102ED question - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hi Group, Last night I had a chance to get out and try a SV102ed I picked up on the claasifieds and my new Hotech Field Flattener to accompany it. The first copy I had didn't seem to do anything to the field curvature though, the replacement I For just a flattener the Hotech 2" SCA flattener does an outstanding job with a DSLR APS-C frame. Dual flexible rubber contact rings automatically center and secure the Field Flattener - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hi all. Nice round stars across the whole field of my micro 4/3rds sensor, and when I still used a D610 the field flattener did a good job of taming the stars across almost the entirety of the full frame with the AT6RC. ; Coma correctors eliminate a Newtonian telescope’s coma defect; Reducers are strictly speaking not correctors. I attached the camera to the filter wheel, screwed in the T2-T2 adapter and 11mm ring but at this point I’ve run into a problem. Our Price: $175. 3 ff/fr at the back of the OTA? Which field flattener? - posted in Beginning Deep Sky Imaging: Im looking to get a field flattener, potentially for use with: Orion EON 72mm ED - 431mm f/6 William Optics Megrez 90 - 621mm f/6. Features & Specification. Ive read about fine tuning Select the department you want to search in The images obtained via the Hotech field flattener are noticeably better than the ones via the Stellarvue flattener. Getting stretched The Hotech 2" SCA Self-Centering Field Flattener is a high-quality accessory designed to correct field curvature in astrophotography, ensuring sharp stars from center to edge. Hotech SCA field flattener back focus issue - posted in Equipment (No astrophotography): Hi,Im using an Altair 72EDF Deluxe (which is rougly the same as the AT72II) with a Hotech SCA field flattener for a few months Thank you for purchasing the state-of-the-art HOTECH SCA Field Flattener for your camera. Plus it has its own way of tightening it up in the tube and centering itself, with the rubber bands Field Flattener for Refractors vs Reflectors - posted in Beginning Deep Sky Imaging: Hello everyone, I am currently using an Explore Scientific ED102 CF refractor with a Canon 6D (full frame) DSLR and a HOTECH SCA field flattener. With a 5mm thick T-EOS That’s funny because that flattener being reduced is really making me question buying that scope also. I have taken a few successful stacks of photos, and definitely see the field curvature, as expected. I would like as much expert input on this purchase as I can get The open cluster at lower right is NGC 7510. It will also work well with Field flattener for 120mm EON - posted in Refractors : Whats the best FF for this instrument? I dont want to reduce the focal length if possible. 5Dob, 30 November 2019 - 08:35 PM. 7 reducer/flattener but also wanted just a flattener in case I was shooting something that I wanted more focal length. Suitable for f5-f8 refractor telescopes. While it does a good job (I think) in flattening the field, it HOTECH SCA FIELD FLATTENER The HoTech SCA Field Flattener is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the precious collected light from your telescope. About Us; View Cart; My Account; Help / FAQ; SCA Field Flattener. $ 479. 00 - Original price $245. Apertura 60mm f6 field flattener options - posted in Refractors : I ordered my Apertura 60mm f6 scope last month. Our Price: $353. I wanted to be able to thread my flattener directly to my focuser drawtube without having to use compr Lunt 102mm f7 + ASI2600 Duo + what field flattener? - posted in Beginning Deep Sky Imaging: Looking for advice for a field flattener for the Lunt 102mm f7 refractor. 99 - Original price $ 479. 5" the HEX Focuser I have a Hotech SCA field flattener , a Explore Scientific ES 80 and a full spectrum modified (IR filter completely removed) Canon 450D, and a Field Flattener help - posted in Beginning Deep Sky Imaging: I have a Orion ED80T-CF with a Hotech field flattener, and a IR modified Canon 60D. Near field flattener For best results, the flattener should have an RC that will correct for the same RC as the scope it is being used in. In many of the apps I am using it wants me to provide details like telescope diameter, The images obtained via the Hotech field flattener are noticeably better than the ones via the Stellarvue flattener. Explore Scientific 3" 0. This has been a problen since it was new, however when I got the FF I was using my astromodded Canon EOS 550d. Features. Anyone use this combination? currently using the 1. Has anyone used both, that can give a good comparison. 2" barrel size T2-thread for camera connection suitable for refractor telescopes from f5 to f8 This 2" field flattener, a fully multi-coated two-element lens, produces the highest light transmission efficiency without giving up any valuable light your telescope has gathered. 9. 3. Camera ZWO ASI2600MC/MM Pro, M31-LRGB were taken both at prime focus (top) and with the addition of a Hotech SCA Field Flattener (bottom). The SCA Field Flattener is designed for Hotech 2" SCA Field Flattener Get sharp images from your refractor, even into the very corners. 2F/L Scope which I absolutely love. The recommendation from the vendor is to have 55mm spacing between the focal plan or image sensor and the flattener. 8 Reducer for each. A high-quality, non-focal-reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios around f/5. I need to adapt the SCA FF to an Adaptive Optics Unit in my optical train. Works with f/5 to f/8 refractors. 75 Reducer /Flattener is very attractivebut both are also very expensive. 00 Add to Basket. 8X Focal Reducer, Corrects The Field Curvature and a Wider Field for Field Flattener options for Orion 80mm ED CF - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hi everyone, I recently purchased my first telescope (Orion 130ST 1. 7x Focal Reducer is a multi-faceted accessory designed to enhance your astrophotography View full details Original price $ 479. Im currently using the TSFLAT2 from Teleskop-Service for my Astro-Physics Stowaway (old). I need a field flattener. I have a canon 1300d on a skywatcher startravel 120. 00 Our price: $ 339. 7x Reducer/Flattener Hotech 2" 1x Field Flattener Original Hex Focuser that came on scope Total cost new will run you over $3,000. 5 Triplet ED APO with 2. Hotech SCA Field Hotech field flattener and Nikon D7500 - posted in Equipment (No astrophotography): I’m trying to understand how to achieve correct spacing for a Hotech Field flattener using a Nikon D7500, on an Explore Scientific ED80 FCD 100 (2. Not all telescopes have the same RC. 5mm. The film is reasonably fine grain. I also have the Hotech SCA Field Flattener as well, but I actually haven't tried it yet. It HOTECH SCA FIELD FLATTENER The HoTech SCA Field Flattener is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the After doing some searches online, I found only two general-purpose flatteners; this review is of one of them, the Hotech SCA Field Flat-tener. 25 extension tube that came with the camera, I estimate the extension of the tube to achieve focus at 11. It accommodates f/5 to f/8 refractor telescope. I had the camera (Canon 60Da with a 2" ES flattener attached) at the back so the light should just go strait through but I expect there are some internal reflections created by the mirror. For more information about this FF here is the link to the Does anyone make a field flattener that doesn't reduce the focal length? Maybe the Orion Field Flattener for Short Refractors? Thanks. 5 APO FCD100 ED Triplet Refractor & Hotech 2" SCA Self-Centering Field Flattener - posted in Beginning Deep Sky Imaging: I removed the ES FFFR from my ES 127mm f/7. So, after running some FocusMaxv-curves and getting the focus set, I wanted to see how 44 Astronomy TECHNOLOGY TODAY HOTECH SCA FIELD FLATTENER Image 1: The Hotech SCA Field Flattener is attached to a Borg 125SD equipped with a Feather Touch focuser and supports a QSI583ws camera via two 10-mm spacers. Skywatcher 0. In the box. The FCD 100 version of the ED127 comes with a 2. Thank you. If you want to use the full focal length, then the Hotech sca field flattener works really well (just unscrew the self centering bit - can be hard to unscrew - and you have a 48mm thread to directly attach to the es telescope adapter). correct order? - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: i am new to AP and just getting started setting up this rig. Would like to keep to How to remove 2" T adapter from Hotech Field Flattener. Ive read many good reports about the HoTech SCA. 5 years ago) and quickly I can't tell you for a 100 %, but I'm using a scope with similar specs, and the Hotech Field flattener works with it fine. The whole package seems odd and the total cost is almost as much as Page 1 of 2 - Risingcam IMX571 backfocus and Hotech flattener - posted in Experienced Deep Sky Imaging: The backfocus on my setup: ED102 scope, Hotech field flattener, RC IMX571 OSC is the backfocus of the camera, 17. I have the Hotech Field flattener spacing - posted in Beginning Deep Sky Imaging: Ive got an AT72EDII, DSLR, and Orion field flattener. My problem is the back focus of the field flattener is only 51. By attaching a field flattener to the back of the telescope, astrophotographers can significantly reduce or completely remove coma, astigmatism, and Standard T-rings are usually 42mm thread. It accomodates f5 to f8 refractor telescope. The SCA FFL accommodates f/5 to f/8 refractor telescope providing sharp Hotech 2" SCA Field Flattener Get sharp images from your refractor, even into the very corners. If the flattener is designed for the scope, there can be some variation from the spec, but it's usually in the 1-2mm range. More contrast overall, and better sharpness over the whole camera sensor field of view, especially in the corners. I was hoping my Orion 0. This field flattener is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the precious Hotech 2" SCA field flattener (SCA-FFT58) is an equipment item of class Accessory on AstroBin equipment database. Through experimentation, you can find the best back focus for your particular scope and then tweak it to achieve optimum field * HOTECH SCA 2" Field Flattener @ $160 * Stellarvue Photographic Field Flattener for f/6 refractors @ $265 * Tele Vue Field Flattener / 0. 5 APO FCD100 ED Triplet Refractor and installed the Field Flattener from Hotech 2 SCA Self-Centering Field Flattener. This flattener is for photographic use only. 99 $ 479. I was planning on purchasing the WO ZS81 doublet refractor, and wanted to know if a field flattener is necessary? I use the Hotech field flattener , not reducer, as well. 7x flattener/reducer with this scope. Have my Im not sure if I should get the field flattener/reducer (0. Backfocus distance of 55mm is required to achieve proper focus. Thanks Astrofotografie > Accesorii optice > Flattener, Corectoare, Reducătoare > Hotech > Hotech 2" SCA Field Flattener 2" SCA Field Flattener $ 391,00 Pretul nostru: $ 336,00 incl. Any other options other than the Hotech? I purchased a Hotech field flattener/reducer and measuring with my digital vernier I got the back focus to 55 mm from the back of the Hotech but cannot achieve anything like focus. However, I usually encounter issues when using this with my larger Astro-Tech AT130EDT APO. It works great! We also discuss the effect This 2" field flattener, a fully multi-coated two-element lens, produces the highest light transmission efficiency without giving up any valuable light your telescope has gathered. . This was just a test a few years back to see how well the field flattener worked. but they are always out of stock. I recently had to make the same decision for a field flattener to use with my Stellarvue SV80ST @ F/6. I would be imaging with a Canon 600D and Ive read that scopes above f/7 dont require a flattener when used Hi So my issue is that every sub has stars at one corner pointing to the middle of the image, as if it's not being corrected by my Field Flattener. It’s been working really well and is High Quality Optics Designed for Refractor Telescopes This field flattener is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the precious collected light from your telescope. It AT72EDII, ASI2600MC-PRO, HOTECH Field Flattener Questions - posted in Beginning Deep Sky Imaging: Team, I recently acquired the camera and field flattener documented in the title. If you're using a generic flattener that may not be well matched to the scope, anything is Does anyone use or know if it is possible to use the Hotech SCA field flattener with a 2. Edited by 17. Best field flattener and/or reducer for full frame - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hey guys, Im wondering if anyone out there is shooting full-frame with a Skywatcher ED80 TEC 180 Field Flattener - posted in Refractors : Does anyone have any direct experience with assembling this on to the scope? Having trouble figuring it out. The HoTech SCA field flattener accomodates f5 to f8 refractor telescope. $196. 5" rack and pinion focuser with an I have a TEflat2 flattener for use wth my Megrez 90 and it works well. Eliminates Drawtube & Visual Back Slop Astrophotography > Optical accessories > Flatteners, Correctors, Reducers > Hotech > Hotech 2" SCA field flattener 22937 2" SCA field flattener RRP: $ 391. Field flattener (flatner?) - posted in Experienced Deep Sky Imaging: I have had zero sucess searcing this forum. Instructions say 55mm back focus This video is just the physical exchange of these components. 2" SCA Field Flattener with T-Thread. HoTech SCA Field Flattener 2" High Quality Optics Designed for Refractor Telescopes The HoTech SCA Field Flattener 2" is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the precious collected light from your telescope. Twist to adjust, then lock it in place. Seeking advice. With the Hotech 2" SCA Field Flattener, you'll see clear, crisp images over the entire field. firstlightoptics. Lumicon minus violet filter. Buy DETAILS. Local pickup or meet halfway in Posted this below also, this is how my Hotech 2" SCA Field Flattener performs in my Orion ED80T - Here is a screenshot of a single image, only calibrated and not aligned yet. These are both great tools to keep around. 5" inch focuser? I have the Explore Scientific 127mm f/7. Removing the compression rings on hotech new product release, sca laser collimator, telescope alignment, telescope, astronomy accessories. The Hotech which should have worked with my ES 80mm APO still gave me slightly distorted stars at the corners. add to cart. FREE delivery Wed, Jan 8. I have been struggling with elongated stars in the corners, and am wondering if I should try a different field flattener, or if I am expecting too much from this scope. Throughout the history of HOTECH, the company has continuously brought forward innovative and proprietary technologies to assist customers in developing and acquiring next-generation products offering a competitive edge. The 2" Field Flattener Accepts 2" Filter Thread. So is the reducer needed for AP with this scope or just get a flattener? Any recommendations from folks with the scope? This useful non-reducing Field Flattener enables DSLR astrophotography with most f/5-f/7 refractor telescopes. I have been using a Hotech Field Flattener with my WO ZS73 f 5. I guess you can send it back if it won't work. The astro tech . 9 Stellarvue SV110ED - 770mm f/7 Astrotech ATRC-6 - 1370mm f/9 The Astrotech flattener states that it is designed to work with f/6 through f/8 refractors, but works "surprisingly I use both of these (albeit the older model AT field flattener) for both my AT80ED and AT6RC. As I astromodded it myself, I could no ES ED102 triplet - need flattener or reducer? - posted in Refractors : I have found a few pieces of info here and there on reducers/flatteners used for a ES ED102 triplet. ES 127mm f/7. I can send some test images if you like using a modified Canon 40D. Free US Shipping Tele Vue 2" 0. 2" barrel size T2-thread for camera connection suitable for refractor telescopes from f5 to f8 perfectly centered camera - always! 55 mm (standard) distance to sensor. laser product for astronomy, green laser, laser with flashlight, astronomy, astronomy laser, and laser collimation for all telescopes. Bundle with SV209 Field Flattener, 122mm F7 Triplet Apochromatic Refractor and 0. Check the image. This field flattener is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the precious collected light from your telescope. Used on my CF 80mm. The Hotech SCA did a good job on the ES ED80 I had, now using it on the Hotech SCA Field Flattener with Orion ED80 - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Greetings everyone! Its been quite awhile since Ive posted in the DSLR forum, and this may be one Hotech 2" Field Flattener - posted in Beginning Deep Sky Imaging: First image with the Hotech 2 Self-Centering Field Flattener. Of course Yuri offers his TEC model, and the Riccardi . Help me pick a field flattener for my ED80 - posted in Beginning Deep Sky Imaging: So I have the Explore Scientific ED80 triplet essential series, and its finally up and running. 00 Perhaps, I would be aware that F6 to F4. $2,200 includes Paypal and shipping in CONUS. I have stopped using mine for astrophoto since it gives odd reflections in my images. The ATs are always well recommended. Can anyone help please. 5 to f6. Sky-Watcher Field Flattener for Esprit-80 (1) HoTech; Howie Glatter; Other Collimation Tools; Coma Correctors; Computers; Counterweights; Dew Is the Hotech SCA field flattener the same beast as the GSO Focal reducer being sold by Andrews Coms? Part no CO-001? Or the AstroTech 2" field flattener? #7 01-06-2010, 10:17 PM h0ughy (David) Moderator : Join Date: Apr 2005. 99 - $ 479 The Orion Field Flattener for Short Refractors has fully multi-coated 2-element optics and a clear aperture of 38mm. design and mfg. prea scump? termen prelungit gata de livrare in 6-10 saptamani + timp de tranzit. Any ideas? Field looks more distorted at the top of the image. Not that the Hotech is bad, still better than not using one. You will see bright and sharp image across the entire field. 00 Page 1 of 2 - Non-Reducing Field Flattener Question - posted in Beginning Deep Sky Imaging: Hi everyone, when I got my Astro-Tech AT80ED telescope, I also bought the AT AT2FF non-reducing field flattener, which has worked well for me on the AT80ED. I do have an off-axis reflection issue I need to deal with, but I think I know how to do that. , 9320 Santa Anita Ave. I purchased the ES ED80 FCD100 “the good glass” telescope back in January and after a cursory look into field flatteners prior to clicking BUY I got the “matching” ES field flattener that is designed and advertised for their Achromatic, Essential APO, and FCD100 series of 80, 102 Meade 80mm f/5 with HoTech SCA Field Flattener TEST - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hello all, I have always looked to cloudynights for help throughout my astrophotography To get sharp stars across the viewing plan, I choose to buy a Hotech 2'' Field Flattener (read a lot of discussion here and settled for it). I was wondering if anyone has recommendations for a non-reducing flattener for this scope. But it looks like the astro Field flattener back focus - posted in Beginning Deep Sky Imaging: I am using an Orion EON 130mm ED Triplett refractor scope and Orion proprietary field flattener with a Canon EOS 70D for astrophotography. This field flattener is fully multi-coated on two-element lens allowing the most efficient light transmission without sacrificing the precious collected light from your telescope. 0, and a focal length of 910mm they do have a 0. However, now that Ive moved up to a larger sensor, I really am starting to notice the field curvature so I am in the market for a flattener or flattener/reducer. High Quality Optics Designed for Refractor Telescopes. I don't know if the RC value will be close enough, but most 4" and 5" refractors have field curvature that is similar to that of a C8. I use this with my es 127 and it gives a perfectly flat field. Hotech Corp. 8x Reducer / Field Flattener for 400 - 600mm Focal Length Telescopes # TRF-2008 . It is a dedicated flattener and not a reducer. It accommodates f5 to f8 refractor telescope. I shoot with an ASI294MC sensor and I dont see myself upgrading to a larger sensor because I am quite happy with it. Good even illumination - can be used with full format sensors; Generous back focus distance of between HOTECH Corp. Stars aren't perfect at the corners but this may give some Field Flatteners, spacing, and Focal Length. 8 FF/reducer. Details. SCT Field Flattener - posted in Celestron Computerized Telescopes: Have anyone used a 2inch flattener like HOTECH SCA 2 Inch Field Flattener or Astro-Tech 2" photographic field flattener with a C8 SCT through a diagonal instead of the usual celestron/meade/etc SCT 6. It's cheap, but does what it supposed to. And with the long range forecast, its gonna be a while Anyhow, I was curious about its usage at the native HoTech SCA Field Flattener (4) £197. I’ve added a 4mm spacer between flattener and I can tell you I have NOT been able to get a flat field with the ES 0. Free US Shipping This video describes how easy it is to modify and install the Hotech Field Flattener onto the William Optics GT71 telescope. Technical data. The William Optics 0. In Stock. I am going through this exact exercise setting up my 152mm refractor to work with the ASI1600/QHY filter 2 Hotech SCA Field Flattener for use with RC8 - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hi FolksThe Astro-Tech 2 field flattener seems similar to the Hotech flattener. HoTech 2" SCA Field Flattener with T-Thread for f/5 - f/8 Refractor Telescope # FF582 . 75) filter thread. But I am not sure of that. Will also provide much improved results on refractors with focal lengths narrowly adding - OAG, filter drawer to dslr w/field flattener. 0. They do make wide T-rings with 48mm thread, which can help reduce vignetting depending on your set up and what sensor size you have. It is optimised for DSLR cameras and telescopes with f/5-f/7 focal ratios. As I read Hotech SCA 2" Field Flattener (compression ring removed) ZWO OAG-L ZWO 7x2" Filter Wheel ZWO ASI2600mm Astronomy Camera Accessories: ZWO 30mm F/4 Mini Guidescope ZWO ASI120mm Mini Guidecamera iOptron GEM45 Mount Pegasus Astro Powerbox Adv. It is in excellent condition but I do not have the box for it. Ive found three options: The manufacturer recommends the Sky-Watcher 0. Featuring fully multi-coated elements and a short profile design, it maximizes light transmission and flatness over a crisp wide field without reducers. 5mm This is a Hotech field flattener that I know longer need. SCA Field Flattener has built-in standard 2”/48mm (M48-P0. Here is my quandary:The ES field flatteners are specialized for Canon or Nikon, I own Pentaxs. I showed the previews used for the next image. 99 Original price. But, it would be nice to be able to do astrophotography at the native focal length and not stepped down all the time. NEW SkyWatcher Field Flattener for Evoguide 50 ED. 5 oz. Is there a flattener/reducer Hotech 2" SCA field flattener (SCA-FFT58) is an equipment item of class Accessory on AstroBin equipment database. Sky-Watcher 72ed field flattener - posted in Refractors : Hi Team, I just ordered Sky-Watcher EvoStar 72 APO Doublet Refractor exclusively for astrophotography with either Canon DSLR or ZWO ASI294MC Pro. It needs 65mm to give me a proper image. The 2" SCA field flattener RRP: $ 394. Its Self-Centering Adapter (SCA) eliminates tilt by automatically aligning with the optical axis, a crucial feature for precise imaging. This came as a bit of a surprise, considering I had only paid 160$ for the Hotech SCA FF (I understand it is more Backspace requirement Hotech field flattener. Description Explore Scientific’s 3-inch Field Flattener/0. 5” focuser). Add to cart-Remove. Has anyone tried using the Hotech with the GSO RC8 or Astro-tech AT8RC 8 f/8? (Same scope just different name in US compared to Australia). In typical use The field flattener is on the chart you had at the top, they just call it the focal reducer (#16). The TEC140 instructions I found online don’t help bc the 180 flattener doesn’t thread on to the draw tube. HOTECH is a leading company in optoelectronic industry, meeting the needs of business and consumers. I have done a lot of research and found a really good thread: Does anyone know whether the Hotech flattener mentioned needs to be on a CCD, or can it be used on a dslr too? The manual for the Hotech says "The space between the CCD chip to the T-Thread shoulder of the SCA Field Flattener is 55mm", but I'm not sure how to determine this or if I need to buy extra spacers. Would prefer a screw on attachment There has been some discussion in this forum that the TEC dedicated flattener for the TEC 140 improves color correction / spherochromatism and help clean up "blue bloat" that some have experienced when not using Before the image generated by the telescope reaches the camera sensor, additional correction is useful: Flatteners smooth the slightly curved image from mirror telescopes and Schmidt-Cassegrain optics. com/reducersflatteners/ovl-field-flattener/ref/simpastroQuick update with an introduction to the OVL field flattener which is su TEC 140: Which field flattener and/or reducer? - posted in Refractors : I am looking for a field flattener or flattener/reducer for my TEC 140 and am wondering what options are available. too expensive? long HoTech 2" SCA Field Flattener £210. 4. Weighs 7. Just a warning about the Vixen flip mirror. Field flatteners for AT72EDII and AT115EDT? - posted in Refractors : I have these two scopes and I have the dedicated 0. All in Cassiopeia. This is a stack of 8 x 6-minute exposures at ISO 1600 with the Canon EOS Ra camera and Astro-Physics Traveler apo refractor at f/6 with the Hotech field flattener. I decided to get this non-reducing flattener. Superb optics and reliable SCA adapter for f/5 to f/8 refractor. The conditions: Seeing was not the best with some haze and some high thin Which has a focal ratio of f/7. Corner to corner flat (using an APS-c) on my AT115. Only 11 left in stock - order soon. Anyone using this FF? The stars in the corners are not round, A field flattener, also known as a field corrector, is an accessory used in astrophotography that helps to eliminate optical aberrations caused by the curvature of the telescope's focal plane. 00 Original price $245. The ES 80mm has a focal length of 480mm. As far as backfocus setup, I have the following: ES Fielf flattener, ZWO supplied 16. This all-in-one reducer/flattener lowers the focal length by 0. I went with the Hotech SCA Field Flattener. With this adjustable field flattener, changing back focus distance is easy. Just a lovely scope for visual, but Im interested in AP now, and its time to think ED127 Field Flattener - posted in Beginning Deep Sky Imaging: Hey all, wanted some feedback on Field Flattener/Reducer for the ED127. Actually pretty much my first image. Hotech 2" SCA field flattener - posted in Beginning Deep Sky Imaging: Maybe a question especially to Stelios, as he recommends it quite often - but likely more people here are using it, and can give some info there. Question: DO any of you Explore Scientific 127 APO users have any recommendations for a field flatterner? I have read/heard that Hotech and William Optics make one that will work. There will be a technical follow up video which discusses pros and cons of Flattener/Reducer c I'm installing the Hotech SCA Field Flattener for F/5 to F/8 refractors in my Explore Scientific F/7 ED102 scope. I did see someone say that the Hotech 2" SCA Self-Centering Field Flattener - SCA-FFT58 works well. Hi! I am having some isues with my setup. The combination produces significant field curvature, so Ive added a Hotech SCA field flattener. The flattener by itself would change it to f/7. too expensive? long-term ready for shipping in 6-10 weeks + lead time. Ilford Delta100 10min exp. TVA plus costuri de livrare. 79x) kit, which is over half the cost of the scope itself. While technically 2 different terms, most optical trains only have one of them (or a falttener/reducer combo), and most of the time you're AT115EDT with Svbony SV209 1x Field Flattener - posted in Beginning Deep Sky Imaging: Hi all. Is anyone currently using this combination? It looks like just what Id want from a configuration standpoint but I dont know if it would serve the intended purpose. 00. 5mm spacer, ZWO supplied 11mm spacer, ZWO supplied 2mm spacer, ZWO manual filter wheel (20mm), then the ASI 1600 (6. 14" HyperStar Upgrade Kit Usually Ships in 2 to 3 Business Days Price: Need a good Field Flattener, AT vs HoTech ? - posted in Beginning Deep Sky Imaging: I want a good FF (not reducer/ flattener) for my new AT115. Add to Cart. HoTech SCA Field Flattener 2" High Quality Optics Designed for Refractor Telescopes The HoTech SCA Field Flattener 2" is fully multi-coated on two- View full details Original price $245. But Here is one. Two-Element Design; Fully Multi-Coated Optics; 28mm Imaging Circle; 6º Pinpoint Stars; Back https://www. Provides an evenly illuminated flat field. It's for scopes from 400-900mm. It accomodates f5 to f8 refractor telescope SV70T Field Flattener (non-reducer)? - posted in Refractors : Curious if anyone has used the stellarvue sv70t with a field flattener that isnt reducing for imaging? I recently bought this scope with the reducer/flattener as well, but have not had a chance to use it. Sky-Watcher Field Flattener for Esprit-80 (1) £145. I found hfjacinto's posting in which he has used the Hotech field flattener for imaging with the EON 120!. The Astro-Tech AT2FF worked flawlessly in the same scope. 5 with - posted in Beginning Deep Sky Imaging: I am interested in investing in that telescope with a Hotech 2 SCA Self-Centering Field Flattener If somebody has a similar system, I would appreciate your feedback (happy/not happy) and if you have a back focus distance from the flattener. - posted in Beginning Deep Sky Imaging: AT60Gs guide scope and ZWO120mm-s used with a Hotech field flattener. Im concerned about compatibility with other FFs and a WO scope. Back The Hotech SCA Field Flattener was an excellent match. 7 reducer/flattener when I Attaching Field Flattener - posted in Beginning Deep Sky Imaging: So I’ve bought a HoTech 2’’ Field Flattener which requires 55mm back focus distance. 8 Reducer @ $265 Williams Optics has one too, but it says it's for refractors from 500mm to 1000mm in focal length. But I am getting uneven field. The SCA FF features a 2" nosepiece which unscrews from the lens HOTECH SCA 2 Inch Field Flattener for Refractor Telescopes. As Sky & Telescope pointed out in their Hot Product citation, "With only a few noteworthy (and expensive) exceptions, refractors need optional field flatteners in order to deliver acceptable star images across the Field flattener for ed80+Canon eos Ra - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Im looking for a flattener that wont reduce the focal length and will also illuminate a full frame sensor. The DSLR and T-ring adapter have the 55mm back focus Hotech SCA field flattener. Using the general rule of 1/3, a 3mm filter will require adding 1mm to the spacing distance from the back of the flattener. My camera is a zwo294 mc pro and my scope is an Explore Scientific ed80apo and my electronic focusser is a zwo EAF. It would be fine for the larger objects but it’s reduction is something I would rather not have. 8 reducer and/or my Hotech field flattener would work for it. 00 Our price: $ 336. 00 $ 196. Im aware of the Astro-Tech and Hotech versions of 1x flatteners but Id really like something that just screws on Field Flattener for WO GT81 - posted in Beginning Deep Sky Imaging: Ive got a WO GT81 and a WO 0. 00 incl. 9, and adding the reducer would change it to f/6. Does my camera’s T-ring thread directly onto the field flattener? And if so, how much spacing should be Backfocus for the ES 127 FCD100 F7. This came as a bit of a surprise, considering I had only paid 160$ for the Hotech SCA FF (I understand it is more The Hotech SCA system ensures this premium quality 2-element multicoated optical flattener is positioned precisely on the optical axis for optimum results. It’s designed for scopes between F/5 -F/7. I saw either the Hotech or the WO iV as potential choices. 77x Reducer/Flattener For Esprit Page 1 of 2 - Best Field Flattener/ Reducer for ES 80mm APO - posted in Beginning Deep Sky Imaging: What would be a nice Focal reducer/ Field Flattener for the ES 80mm with my 1600mm-c Pro? I have the Hotech SCA HOTECH SCA Field Flattener Patented High Quality Optics Designed for Refractor Telescopes. Adaugă în coş Hotech Field Flattner - So bekommen Sie flache und scharfe Astrofotos bis zum Bildrand - Refraktoren haben die Eigenschaft am Bildrand optische Fehler zu zeigen. ? HoTech 2" SCA Field Flattener - posted in Equipment (No astrophotography): Hello guys and gals, I have just recently started trying to automate my astrophotography using APT, Stellarium, PlateSolve2, ASCOM, etc. My Hotech field Flattener specifies 55mm back focus. Its much better than no flattener, but still isnt perfect in the corners. It works better on the 127 than the 102 I'm finding. 8x flattener, but it’s a flattener/reducer (I already have it) but I’m also looking for a “flattener only” as I also want to image at the native 910mm focal length, the problem is, I don’t know what third party field flattener could work for that telescope Megrez 90MM Flattener - posted in Beginning Deep Sky Imaging: Hi All I have an older version Megrez 90MM 6. I saw a ES feild flattener only so I got that, but realized its for f5-f7 refactors only and the ED127 The Hotech 2” SCA Self-Centering Field Flattener is an innovative accessory integrating high-grade optics with a built-in drawtube adapter for refractors. They simply shorten the focal length and therefore reduce I then have an adapter so that the ES field flattener can screw directly onto the extension tube, as opposed to the compression ring fitting. - posted in Beginning Deep Sky Imaging: All, have a Stellarvue 102EDT (102/621mm, circa 2002). This is considered a quality achromat and the best out of the others I have. Point being, your mileage may vary. It may also expose tilt issues. I am using es80, hotech sca ff and nikon 5300. 2 Barrel extender to fit HoTech Field Flattener - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hi, can anyone out there give me directions on where to find a 2" barrel extender with male thread to fit into 48mm female threaded end on my 2" HoTech field flattener and provide an additional 20mm back focus which Iam short of. I ordered the ES . Anyway, I have HoTech 2 SCA Field Flattener which I love. I believe that this is just a backfocus distance issue But I have not found info. bjk efcor xrsbq yxnxo ledk leh cinp ekjfye vxc kxvdahq