Input
| CoC for full frame (c) | = | mm | |
| Aperture f-number (N) | = | or | |
| Actual focal length (f) | = | mm, | equivalent (fe) = |
| Crop factor (CF) | = | or | |
| Sensor megapixel (M) | = | mp, | pixel size (p) = |
| Subject distance (s) | = | m | |
| Subject size (L) | = | m | |
| Hyperfocal distance = f+f2/(N·c) = |
| Near limit of DOF = (s·f2)/(f2+N·c·(s-f)) = |
| Far limit of DOF = (s·f2)/(f2-N·c·(s-f)) = |
| Benchmark camera specs and exposition: |
| N0=, CF0=, M0=, exposition t0= sec. |
| ⇓ |
| Your exposition (ignoring dark and read noises) |
| t ≈ (N/N0)2·(p0/p)2·t0 = (N/N0)2·(CF/CF0)2·(M/M0)·t0 = |
| Horizontal FOV = 2·atan(36mm/(2·fe)) = |
| Vertical FOV = 2·atan(24mm/(2·fe)) = |
| Subject angle of view = 2·atan(L/(2·s)) = |