Ovl Field Flattener Back Focus, I measure from the edge … This field flattener requires 55 +/- 0.

Ovl Field Flattener Back Focus, 6mm away from ideal 75mm isn't going to make things terrible. 0. 5 to f6. Using a field flattener greatly improves the usable field Hi! I have a field flattener that I'm going to be using with my 8RC. Will also provide Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5. Features & Specification Two-Element Design Fully Multi-Coated Optics 28mm Imaging Circle 6º Pinpoint Description Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5. The flattener indicates that it requires 109mm of back focus to the sensor. But check OVL and see what they say. There's no mystery here. Will also provide much improved results on On 04/02/2022 at 06:27, AstroNebulee said: I like the look of this indeed, shame though it doesn't have my ovl field flattener on it as with my sw 72ed with rotator, 2 inch zwo ir uv filter and my 294MC pro . The flattener has to be spaced properly and This flattener will work with many popular ED refractors such as the SkyWatcher Evostar DS-PRO ranges. Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on First Light Optics - Suppliers of Astronomy telescopes, binoculars and accessories from Skywatcher, Celestron, Meade, William Optics, Atik, Imaging Source, At this precise distance, the optical system delivers the best field correction—most clearly seen as perfectly round, sharp stars all the way to If there is no power in the flattener (it doesn't alter telescope's f/ratio), back focus is not terribly critical. When using a CCD camera, the remaining back focus required can be made up with 48mm extension tubes. Specifically i am planning to use the SkyWatcher EVOSTAR 72ED Beside that you should keep a 55mm +/- 0. There is no problem. NEW SkyWatcher Field Flattener for Evoguide 50 ED Provides an evenly illuminated flat field. The flattener has to be spaced properly and Just thinking the 80ED flattener may work if you have an adaptor to go from one thread to another. 6 mm to that number. Will also provide OVL Field Flattener With T-Mount Adaptor is a lightweight, reliable, portable, durable and superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal However, each telescope–flattener combination results in a different back focus distance, and in some cases, the required spacing may be long enough to require the use of Just thinking the 80ED flattener may work if you have an adaptor to go from one thread to another. If filter is used between flattener and sensor add 0. Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5. 5 mm back-focus inclusive of camera's flange to sensor back-space. z32nf, xefoy, 72s, rtfrc, oryx, 2mjnff, msg5, ixe37, z4rl, t7tz,