2024 Field flattener for short refractors

Field flattener for short refractors

Author: nuvz

August undefined, 2024

WebJan 3, 2024 · Page 1 of 2 - AT72 EDII- not impressed. - posted in Refractors : Ok, so the reason I bought this small telescope to get away from the usual Newtonian stuff- including star aberrations due to fast optics (F3 with the Starizona), but it seems like this is even worse than any of my scopes. Very disappointing. First of all I used a DSLR, because … WebDec 18, 2024 · Probably the focal length of this telescope is just too short. Anyway, the matter left me no peace and since I use the refractor in the backyard only for wide-field purposes, I put the matching photo flattener behind the Amici prism. But for this I had to replace the focuser. The result is a much flatter field and a very satisfying visual ...

Orion 8893 Field Flattener for Short Refractors - amazon.com

WebNov 23, 2024 · Make sure you invest in the appropriate field flattener for your refractor, as this extra glass lens will help flatten the field of view to the very edges of your picture. … WebMay 13, 2024 · I added this Orion field flattener to my 80mm short focal length triplet refractor astro-photography rig. I had been successfully using a combination 0.8x focal reducer/field flattener, which was excellent. But I also wanted to use the refractor at its native focal length of 480mm without the increasing oblong stars around the edges of the … dr ilboga

The Best Astrophotography Telescope for a …

WebFor short refractor telescopes with fast optics, this convenient fully multi-coated 38 mm clear aperture Orion Field Flattener eliminates field curvature. Works with refractors … WebSep 24, 2024 · Depends on what you want. The reducer changes the FOV and increases the speed of the scope. This can be nice. If you don't need the faster speed and/or wider field-of-view, then go for the OVL flattener. Some kind of flattener will be needed. Field curvature will be apparent without it. Like. WebThe TS FLAT2 is a Field Flattener designed for use with APO/ED and Fraunhofer refractor telescopes with focal ratios f/4 to f/9. Features. Good even illumination - can be used with full format sensors; Generous back … raleigh mojave 2.0 dama

$Field flatteners for short focal length refractors$

Apex ED .65x Reducer / Flattener — Starizona

WebJul 4, 2016 · Field flattener for refractors, suitable for telescopes from f4 to f8. M48 thread for complete aperture illumination at 2", room for accessories between - 109mm of back focus. ... Orion 8893 Field Flattener for Short Refractors. SVBONY SV205 Telescope Camera, 8MP USB3.0 Electronic Eyepiece, 1.25 Inches Astronomy Camera for … WebMay 13, 2024 · The Orion field flattener was the perfect solution. It installed easily and produced small round stars across the entire field-of-view in my set-up. The well-made, … raleigh mojave 2.0 raleigh jetport

"WebDesigned for use with refractors with focal lengths of 400mm to 660mm and focal ratios of f/5 to f/7.5, the Orion Field Flattener for Short Refractors lets you enjoy the full imaging potential of your fast refractor telescope. Fully multi-coated, 38mm clear aperture optics and a glare-reducing threaded interior ensure maximum image contrast. " - Field flattener for short refractors

Field flattener for short refractors

$Orion 8893 Field Flattener for Short Refractors - amazon.com$

WebApr 21, 2024 · I have a William Optics Zenithstar 61 telescope. I’m using it with a 0.6x flattener-reducer. What is this doing, and what magnification would I get with a 25mm eyepiece? 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. WebMay 12, 2024 · Tak FSQ-85+flattener: Slightly short, but „the best“ small scope. Excellent to APS-C. Without the flattener, excellent to M4/3, and then with the advantages of a Petzval. I upgraded the focuser. Askar 107PHQ: Trades some speed for a very well-corrected field. Petzval. Don‘t own one, but seems a sweet scope.

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WebNov 22, 2024 · 19 Comments. The Meade 70mm Quadruplet APO is a high-quality imaging refractor for wide-field astrophotography. This compact telescope utilizes FPL-53 ED glass to produce images with impressive color correction. The quadruplet lens system design results in an ultra flat-field, without the need for an additional field flattener. WebFigure 11.10 illustrates a typical configuration shown by Rosin where the concentric field flattener is located in the image space of a Petzval-type lens. In this case, he followed a …

WebFeb 29, 2024 · Short refractors tend to have greater curvature than long refractors. In a Cassegrain telescope, field curvature is related to the difference in curvature between the two mirrors. If both mirrors have the … WebJul 21, 2008 · It's pretty good, I haven't seen any issues with photographing the moon, and it's pretty darned flat in terrestrial tests (closer than infinitey). If you're interested in terrestrial photography, this is a great way to get a 950mm F/7.5 (or 775mm F/6.3 with the TV flattener) telephoto equivelant manual focus lens.

WebThe Starfield 1.0x Field Flattener enhances the imaging capabilities of refractors by elliminating fiel curvature in short, optically fast refractors providing a flat image for the camera sensor. When using a DSLR and a … WebOrion Telescopes & Binoculars: Official Site - Telescope.com

WebThe Orion Variable Field Flattener for Short Refractors features fully multi-coated, Ohara glass optics to transmit the maximum amount of light to your imaging camera. With a 50mm clear aperture, this flattener is ideal for use with full-frame and smaller cameras. Two interchangeable camera attachment adapters are included, one with standard T ...

WebI paired this refractor with a William Optics 1:1 field flattener (a suggested flattener by my supplier, no focal length change), and an Orion SkyGlow Imaging filter (light pollution killer). This setup gives me a corrected field of view (not 100% flat, but close to it), and allows me to take longer exposures in my light-polluted location. dri lavori udineWebApr 7, 2024 · Still waiting for the dedicated field flattener which ought to flatten out the entire frame since without it, everything out of the center gets to be bloated. Very good construction, light weight, very short (only 9" … dr ileana kirstineWebRecommended Field Flattener/Reducer: Orion FF for short refractors. The Orion ED80T CF is very similar to the Explore Scientific 80mm Apo. They share the same focal length, size, and weight, yet use different ED … dr. ildiko agostonWebWith the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telescope like an RC becomes a speedy f/5.9 system. The reduction factor provides a 1.5x wider field of view and shortens exposure times by a factor of 2.4x! The Apex ED reducer features extra-low disperion glass raleigh mojave 2.0 rodado 26WebWilliam Optics Gran Turisomo 81 APO. Skywatcher produce the Esprit 80 ED PRO Triplet using an FPL-53 for one element and uses a 2.7-inch ‘Linear Power focuser’ which is an improved form of Crayford focuser. A dedicated field flattener can be supplied for imaging use. At greater cost, Meade produce the ‘Series 6000’ 80mm, f/6, ED Triplet including … dr ileana martinez nephrologyWebDec 6, 2011 · Page 1 of 2 - Explore Scientific Focuser & Flattener Woes - posted in Refractors : I purchased an Explore Scientific 127ED Carbon Fiber telescope a few months ago, intending to modify and hookup my Canon 5DmkII to it for astrophotography. I’m a technical photographer and digital artist by trade yet am new to astronomy. I decided to … dr ileana randasuWebThe flattener, also called a field flattener, corrects this effect. Astrophotographers can then enjoy images where the stars remain sharp right out to the edge of the exposure. The flattener is installed between the telescope and the camera. Designed for use with short refractors with focal lengths of 400mm to 660mm and focal ratios of f/5 to f ... raleigh mojave 8.0 bike