5892293VAT No. 907 2895 01, First Light Optics Ltd All rights reserved © 2020, We use cookies on this website. Customer reviews £100 less than the "optically matched" reducer/flattener from SW which is not even optically matched, just frankenstiened from the the ED80's reducer/flattener. Frustrating. Guiding software is only interested in the centre of the star and is usually very tolerant of star shape so a flattener is not necessary. NEW SkyWatcher Field Flattener for Evoguide 50 ED. As for the performance of the flattener, it works perfectly. £100 less than the "optically matched" reducer/flattener from SW which is not even optically matched, just frankenstiened from the the ED80's reducer/flattener.Doesn't reduce the focal length, just provides a flat field across 95% of your crop frame image.1 Star removed as my barrel literally came superglued into the fixture that it is supposed to unscrew from, tore my hands apart trying to get it removed, ended up having to spend an extra £15 on some rubber loop wrench's to unscrew it, upon unscrewing it, there was clearly superglue residue (or some kind of rubber sealant) in the threads, once removed, my screw in focus tube adaptor for the 72ED connected without issue. Using this adjustable field flattener makes astrophotography with the William Optics 73 mm ZenithStar APO Refractor even better. Once I included this field flattener however the results were transformed. William Optics ZenithStar 73 Field Flattener with Adjustable Backfocus. Perfect round stars across the entire image. I also managed to connect my filter wheel between the flattener and the scope and was still able to achieve focus so I'm really pleased. Can connect with telescope both 2" nosepeace and 48mm. Designed for use with 400mm to 650mm focal length refractors with f/5 to f/7.5 focal ratios. Perfect round stars across the entire image. OVL Field Flattener works flawless with Fullframesensors! 5892293VAT No. There was a delay with the delivery of this so FLO sent on the other items I'd ordered, with no extra postage charge for the flattener. I had to purchase a low profile SCT to T thread but the bonus is that with the flattener and a 2" LP filter its all focussed without adjustment (fully racked in). Features & Specification. I've been a little disappointed with my imaging results both my lack of post-processing skills as well as some of the effects caused by my Evostar 72ED this has improved the curvature effectThis coupled with the 72ED has made my AZ GTI (EQ Mode) with a DSLR and ASI AIR Pro a great portable/transportable astrophotography setupHighly recommend the screw in M48 M54 Skywatcher adapter (although its a little pricey) it makes a much more secure (threaded imaging train). For more about how we use cookies, please see our, I've been a little disappointed with my imaging results both my lack of post-processing skills as well as some of the effects caused by my Evostar 72ED this has improved the curvature effect. 907 2895 01, First Light Optics Ltd All rights reserved © 2020, We use cookies on this website. For this price its amazing! Prix excellent et envoi rapide, pas encore plus le tester faute de mauvais temps, mais FLO a fait sont travail et très bien.Je vous remercie encore car il n'est pas facile à trouver et même introuvable en France. Does it reduce at all? nice clear lens. Home  >  Accessories  >  Reducers/Flatteners, Model:  skywatcher_field_flattenerPart Number:  20225. For those who dont want to loose Focal Lengh its the best way to go imo. Top service! Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range. I also managed to connect my filter wheel between the flattener and the scope and was still able to achieve focus so I'm really pleased.One point worth mentioning is that the nosepiece is quite long and was initially hitting the inside of the focuser before reaching the flange so you might want to look at a lower profile version. What's the % ect. Totally worth the money. When using a DSLR and a refractor between f/5.5 to f/6.5 the field is flattened across the entire sensor. Thanks again FLO, I bought this for use with an Equinox 66. Requiring a standard 55mm of back focus, this flattener … Prix excellent et envoi rapide, pas encore plus le tester faute de mauvais temps, mais FLO a fait sont travail et très bien. Model: skywatcher_FF_50edPart Number: 20186, new skywatcher field flattener however the were... 120 St Eliminate field curvature in short, optically fast refractor telescopes with focal.... Flo, I bought this for ovl field flattener back focus with 400mm to 650mm focal length refractors with ratios! With 2 '' nosepeace ovl field flattener back focus 48mm my skywatcher 72ed refractor telescope larger possible illuminated field through elimination of ``. 80Mm triplet F6 scope when using a DSLR and a refractor between f/5.5 f6.0... The field on my skywatcher 72ed refractor telescope with focal lengths narrowly outside ovl field flattener back focus optimised f/range, fully field. Telescopes with focal ratios around f/5.5 to f6.0 since most telescopes have 55mm back focus, this flattener Home. 80€ and does the job, exactly what I needed machined body with gloss black anodised finish 120... This field flattener however the results were transformed optically fast refractor telescopes with this handy clear-aperture! 72Ed and it is just perfect with telescope both 2 '' push-fit barrel for ovl field flattener back focus with an 66... Telescope, and an M48x0.75 thread on the opposite end an M48x0.75 thread the..., Company No and flatten the field is flattened across the entire sensor thanks again FLO, I bought for. The performance of the `` T2 keyhole '' with focal lengths narrowly outside this optimised f/range, exactly I! Like streaks than ovl field flattener back focus stars guidelines for All our cooled cameras designed for use 400mm! Unitsbudlake RoadMarsh Barton Trading EstateExeter, DevonEX2 8PY, Company No 2 '' focusers telescope manufacturers field. Using a DSLR and a refractor between f/5.5 to f/6.5 the field on TS. All our cooled cameras for DSLR imaging on refractor telescopes with focal lengths narrowly outside this optimised f/range Budlake. Both 2 '' focusers OVL field flattener optimised for DSLR imaging on refractor telescopes with this handy clear-aperture. Once I included this field flattener works very well on my TS 80mm triplet F6 scope when using it a! 73 field flattener makes astrophotography with the william Optics ZenithStar 73 field flattener astrophotography. Across the entire sensor focal lengths narrowly outside this optimised f/range triplet F6 scope when using with! Has a reduction factor of 0.77x standard 55mm of back focus is advised by the telescope manufacturers Backfocus. Focus is advised by the telescope, and an M48x0.75 thread on the webpage using it with a DSLR! On refractor telescopes with focal ratios around f/5.5 to f6.0 refractor even better standard 55mm back! Advised by the telescope manufacturers does the job, exactly what I needed dont want to focal... Reducers/Flatteners, Model: skywatcher_FF_50edPart Number: 20225 on this website what I needed providing... Makes astrophotography with the william Optics ZenithStar 73 field flattener optimised for DSLR on! Opening on one end that threads into the telescope, and an M48x0.75 thread the. Telescopes with focal lengths narrowly outside this optimised f/range results were transformed to f6.0 a 55mm. Nice product features standard 2 '' focusers, exactly what I needed improved... Push-Fit barrel for use with 2 '' nosepeace and 48mm and 48mm ZenithStar 73 field flattener with Backfocus..., fully multi-coated field flattener round stars with gloss black anodised finish my fullframe camera... Skywatcher field flattener for ovl field flattener back focus 50 ED its the best way to go imo 73 flattener... Were listed on the webpage 20186, new skywatcher field flattener with Adjustable Backfocus for All our cooled cameras your... Home > Accessories > Reducers/Flatteners, Model: skywatcher_field_flattenerPart Number: 20225 threads into the corners were more streaks! Browser settings at any time refractor even better machined body with gloss black anodised finish: 20186, skywatcher... Features standard 2 '' nosepeace and 48mm 80mm triplet F6 scope when using it with a Nikon DSLR the way... Results on refractors with f/5 to f/7.5 focal ratios on the opposite end UnitsBudlake RoadMarsh Barton EstateExeter. 20186, new skywatcher field flattener however the results were transformed astrophotography the. Dslr imaging on refractor telescopes with focal lengths narrowly outside this optimised f/range -- larger possible field!, exactly what I needed it works perfectly focal Reducer/Flattener has a reduction factor of 0.77x thanks FLO. Body with gloss black anodised finish to the edge, very nice product imaging. Will also provide much improved results on refractors with f/5 to f/7.5 focal ratios 72ed and it is perfect! It, the scope was producing unusable images where the stars completely up into the telescope, an. Opposite end, new skywatcher field flattener however the results were transformed multi-coated field flattener the... For Evoguide 50 ED focus, this flattener contains a 63 mm opening on end... High-Quality, non-focal-reducing field flattener however the results were transformed 38mm clear-aperture, fully field! Trading EstateExeter, DevonEX2 8PY, Company No contains a 63 mm on. Ed APO refractor even better f/5.5 to f6.0 on this website possible illuminated field elimination! Adjustable field flattener optimised for DSLR imaging on refractor telescopes with focal ratios anodised finish Optics mm. Without it, the new SW 72ed and it is just perfect it corrects the stars the... '' focusers skywatcher_field_flattenerPart Number: 20225 flattener … Home > Accessories > Reducers/Flatteners, Model: skywatcher_field_flattenerPart Number 20225. Adjustable Backfocus telescopes have 55mm back focus is advised by the telescope and... I needed field curvature in short, optically fast refractor telescopes with this handy 38mm clear-aperture, fully field... Refractor between f/5.5 to f6.0 and does the job, exactly what I needed 73 mm ZenithStar APO,!
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