WebThe proper back-focus distance to the camera image plane is maintained with Optec's custom camera-specific Lepus mounts available separately below. The OPTEC-2100 interface also allows easy connection to the Pyxis 2" rotator in place of the standard 2-inch nosepiece. ... Special DSLR adapters are available from stock for Canon and Nikon … WebMar 18, 2024 · Most of these adapters are 2", so in a 1.25" focuser a size adapter is needed - but that would waste some back focus distance. Camera. Classic DSLR cameras have a very large flange distance, so a large back focus is needed to overcome it. Other removable-lens, large-sensor cameras have a much smaller flange distance, if they are …
How to Do Back Button Focusing on Your Canon DSLR or Mirrorless
WebNov 29, 2013 · Furthermore, the lens-flange-to-sensor spacing on DSLRs varies from make-to-make, so even if the back focus on one brand of DSLR wasn't quite sufficient then another brand might work and as I mentioned earlier there is a so-called zero-length t-adapter that is made for Canon cameras (so instead of taking 55mm of back focus as … WebJan 25, 2024 · Nikon dslr backfocus (46.5mm) with t-ring is basically your 55mm. My setup is the same and I achieve perfect focus at about 47mm on the drawtube on my sv503 80mm with the sv193 reducer. ... My SV 503 … in a muscle fibre ca++ is stored in
Backfocus C8 + Barlow : Help. - AstroBin
WebJul 16, 2014 · Also, if the backfocus requirement for the canon camera is 44 mm, then I have a problem because my backfocus distance is 38 mm. I measured this distance … WebAug 15, 2024 · Posted 16 December 2024 - 01:27 PM. I am trying to use canon 50mm lens with zwo asi533 mc pro camera. Connection is Asi533 with 11mm ring (17.5mm) + zwo-eos filter drawer (26.5mm) + 50mm lens (at f4). ZWO mentions the same connection in their website. The problem is I am not able to focus even though above connections met … WebJul 20, 2024 · A Primer on Back Focus in Astronomy Author: Manish Panjwani and Brian Ventrudo Published: July 20, 2024 Add a Comment Discuss this article in the … dutchgrand shell