Timeline for Is there something special about f/3.5-5.6?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 29, 2017 at 7:57 | comment | added | Michael C | This does begin to break down with systems that use a much shorter registration distance, but for lenses made for the more traditional 42-46mm registration distances and throat diameters of 44-54mm it holds fairly true for 18-50/55mm retrofocus zooms as well as 50/55-200/250mm telephoto designs. | |
| Dec 29, 2017 at 7:50 | comment | added | Michael C | @BrandonDube Please explain why you feel it is utter nonsense. Lenses generally have a diameter at least slightly larger than the mounting flange. For the likes of Canon, Nikon, Pentax, Minolta/Sony, etc. the size of that mounting flange combined with the registration distance for those mounts and the more or less minimum diameter of a lens made to fit them is roughly what is needed to accomodate an e.p. size of f/3.5-5.6 (and everything else that needs to be squeezed inside the barrel) with an 18-55mm zoom made for an APS-C sensor. | |
| Dec 29, 2017 at 5:50 | comment | added | Brandon Dube | since the entrance pupil (sometimes referred to as the effective or apparent aperture) is still well within the diameter of the mounting flange used by most interchangeable lens camera systems. This is utter nonsense. | |
| Dec 29, 2017 at 0:04 | history | edited | Michael C | CC BY-SA 3.0 |
added 462 characters in body
|
| Sep 28, 2013 at 22:41 | vote | accept | Philip Kendall♦ | ||
| Sep 27, 2013 at 7:52 | comment | added | Michael C | You are referring to the flange to sensor/film distance, also sometimes referred to as the registration distance. I'm referring to the diameter of the flange: how wide the hole in the front of the light box is, not how far in front of the focal plane it is. | |
| Sep 27, 2013 at 7:44 | comment | added | Philip Kendall♦ | Just to check you're talking about the same thing I think you're talking about - according to Wikipedia, the flange for Nikon F is 46.5 mm (Canon EF/EF-S is 44mm). Just a typo? | |
| Sep 27, 2013 at 7:09 | history | answered | Michael C | CC BY-SA 3.0 |