(12C) Hyperfocal Distance

[Dieter]

(04-30-2018 12:19 PM)Gamo Wrote:  The nerd version is so cool very nice one.

Here's another idea: instead of the CoC simply enter the crop factor. Which is what most users will be more familiar with:

Code:

01  1/x
02  ,
03  0
04  3
05  x
06  x
07  /
08  x
09  +
10  EEX
11  3
12  /
13  GTO 00

"full frame":
35 [ENTER] 11 [ENTER] 1 [R/S] => 3,75

APS-C:
35 [ENTER] 11 [ENTER] 1,6 [R/S] => 5,97

(Micro-) Four Thirds:
35 [ENTER] 11 [ENTER] 2 [R/S] => 7,46

@Mike: yes, of course the final "+ f" usually can be omitted. At least unless you know your lens' exact focal length (not just the nominal one) and the effective geometric aperture (not just what you see in the display or on the lens, and f/11 actually is supposed to be f/11,314) and finally if the whole concept of this formula applies at all. Personally, I have always simply calculated f²/Ac. Which still leaves the question of the reference point: 3,75 meters from where? From the image plane? From the lens' principal plane? And if so, from which one... etc. etc. etc.

Dieter