Focal reducer vs field flattener

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WebJan 25, 2024 · This will have drastically altered the focal reduction and so the focus point, so remove that spacer The Back focus of the FR is 55 mm. That's the distance from the back of the FR to the Nikon sensor - NOT to … WebJun 18, 2006 · All today's focal reducers of a notable power (from 0.8x to 0.6x) add some lateral color aberration. This aberration makes star images looks like small short spectras not as pinpoint round small dots. They also can introduce secondary color aberration. Field flatteners haveing almost no power do not introduce lateral and secondary color. Valery

Telescope Reducers & Flatteners for Sale Online - First Light Optics

WebJun 21, 2024 · Refractor Focal Reducer/Field Flatteners. Each major refractor manufacturer also makes focal reducers to work with their apochromatic or ED scopes. Often combined with field-flattening elements, these reducers are available with a reduction factor of 0.7x-0.8x for refractors with a focal ratio of about f/6 to f/7.5. WebSep 26, 2024 · Yes, because the LF reducer needs the large, 3.29" backend to give that huge image circle. The C9.25 and below don't have that. So yes, I guess if somebody wants flattened, coma-corrected, large-format (42mm) images with a smaller (9.25", 8") SCT, then the EdgeHD is the way to go. scrolling carousel react

Reducer - Corrector Celestron

WebApr 21, 2024 · As with all refractors, a field fattener or field fattener-focal reducer is recommended for imaging purposes but it is unusual to use such an adaptor for … WebOct 11, 2008 · This report is an initial comparison of the following focal reducers using the same visual and photographic tests on a Meade 8" LX90-ACF. Meade f/6.3 Series 4000 … WebOftentimes, a field flattener also has focal reducer capabilities, so you can get wider shots out of your scope. Be sure to check each field flattener we carry to see if you can use it … scrolling capture sharex

The GSO 8-Inch Ritchey–Chrétien Telescope - Astronomy …

SVBONY SV193 Focal Reducer and Field Flattener, …

WebOct 13, 2010 · You mentioned the AT line of telescopes. Great choice. I've owned the AT60ED for two years now and love it. For a doublet it performs admirably. I also use the 0.8x ATRF Reducer Flattener to get a flat field, F/4.8 speed, and a focal length of 287mm. I think you would be pleased with it or the AT72EDii depending on what field of view you … WebOct 3, 2024 · You will need a flattener and there is no other "adaptor". You want the image flattened and that takes a flattener. Reducer/flattener is your choice. But the 72ED is not a long focal length so images will be on the smaller size. Which one will work often depends on the threads that attach the flattener to the scope - focuser. scrolling capture not working snagitWebThe required distance varies from ~100 to 130 mm as the telescope focal length increases from 450 to 800 mm. It does work very well. The table shows the required separation between the rear of the flattener and the camera sensor. ♦ focal length < 450 mm: 128 … scrolling capture edge

"WebThe 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). Once installed, you can add additional accessories like T-Adapters, 1.25” Visual Back, Star Diagonal, or Off-Axis Guider. The Reducer/Corrector can also be used for terrestrial ... " - Focal reducer vs field flattener

Focal reducer vs field flattener

$William Optics GT81 -- field flattener questions - Refractors$

WebJul 13, 2015 · If you want to go to a bigger sensor then going with a flattener might be required based on the stock flat field of the scope you are using. There are flatteners only and flatteners/focal reducers. Whether you want a reduction in FL depends on what you plan on imaging and what you plan on imaging it with. WebMay 19, 2024 · SV193 focal reducer and field flattener is suitable for you to take dazzling celestial photos There won’t be any distortion of the star points on the edge of the photo …

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WebDec 19, 2024 · The Focuser also can move 360 degrees so you can get any Angle desired for comfortable viewing. It also has 90mm Focus Movement so with correct adapters achieving focus is always possible. The focal Length is 714mm and with Svbony's 0.8 reducer you can get Focal Length down to 572mm for really wide View. WebSep 13, 2024 · 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.

WebMay be used to increade field of view and reduce magnification for visual applications. An important advancement in high-resolution focal reduction systems, the Meade 4 … WebJul 24, 2024 · A better option would be the tunable reducer offered by william optics. You don't mention what camera you are using, if it is smaller than an aps-c then you could be a guinea pig and try the long perng .6x reducer flattener. This would give you F4.8 at 974mm, and personally I would gamble on better coma correction than the ccdt67.

WebApr 23, 2024 · No, reducing the focal length increases the field of view. With a given aperture you can reduce integration time by using a more sensitive camera, binning the capture or by using larger pixels. The hyperstar would bring it to F/2, making it a whopping 26 times faster than at f/10. Wrong. Don't be fooled by the Hyperstar website. WebJun 13, 2024 · Focal reducers also move the effective focal plane of the objective inward, that is, towards the objective (see Figure 1). The more focal reduction, the further inward …

WebAstro Essentials 0.5x 2" Focal Reducer. £39.00 Add to Basket. StellaMira 2" 0.8x Reducer / Field Flattener with M42 Adapter (3) £89.00 Add to Basket. StellaMira 2" Field …

WebMay be used to increade field of view and reduce magnification for visual applications. 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 ... scrolling cell phoneWebMay 12, 2024 · Petzval design vs Triplet with a flattener - posted in Refractors : I am looking for a quality refractor with a focal length in the range of 500mm to 700mm. One … scrolling capture toolWebJul 18, 2024 · A 0.85x Focal Reducer / Flattener will change the scope to a f/5 at 357mm for the focal length. It will make the scope photographically faster and give you a wide field of view. The Astro-Tech Field Flattener may be a good fit but you will have to play around with the back-focus to get optimum stars. pcc sterlingWebMay 12, 2024 · Petzval design vs Triplet with a flattener - posted in Refractors : I am looking for a quality refractor with a focal length in the range of 500mm to 700mm. One of the questions I have is what are the inherent advantages or disadvantages of these designs, if any. I am most familiar with Televue and Stellarvue and they both have scopes in that … scrolling capture snagitWebNov 14, 2024 · Field Flatteners And Reducers Some flatteners do just that: they flatten the field removing the field curvature created by the telescope. Some flatteners are also … scrolling calendar in excel pcc stadion hombergWebSep 30, 2012 · I have the AT130EDT with a FL of 910mm. I have added the Hotech 1x Field flattener to it which has a BF of 55mm. Things look alright on my small 533mc sensor and relatively flat, although I have not actually ran a measurement. Now when I let the ASIAir calculate my FL, it comes out either at 902 or 903mm with the field flattener, so it has … pcc stephs tofu nutrition