Mamiya C Camera
- Mamiya TLR System Summary - Chapter 0
- Mamiya TLR System Summary - Chapter 1
- Mamiya TLR System Summary - Chapter 2
- Mamiya TLR System Summary - Chapter 3
- Mamiya TLR System Summary - Chapter 4
- Mamiya TLR System Summary - Chapter 5
- Mamiya TLR System Summary - Chapter 6
- Mamiya TLR System Summary - Chapter 7
- Mamiya TLR System Summary - Chapter 8
- Mamiya TLR System Summary - Chapter 9
- Mamiya TLR System Summary - Chapter 10
- Mamiya TLR System Summary - Chapter 11
- Mamiya TLR System Summary - Chapter 12
- Mamiya TLR System Summary - Chapter 13
- Mamiya TLR System Summary - Chapter 14
- Mamiya TLR System Summary - Chapter 15
- Mamiya TLR System Summary - Chapter 16
- Mamiya TLR System Summary - Chapter 17
- Mamiya TLR System Summary - Chapter 18
- Mamiya C220 Photo Page
- Mamiya C330 Photo Page
- Mamiya Miscellaneous Photo Page
Mamiya TLR System Summary - Chapter 10
10 Data Tables
10.0 Introduction
After some debate, the general depth of field tables that used to be included here have been removed. There are a number of online DoF tools available, and almost as many will run as applications on Android or iOS devices.
For the same reason, the PostScript program to produce a DoF calculator wheel has been omitted. The code is still available.
The Close-up Depth of Field tables have been retained, as these are more specialized, and more compact.
10.1 Close-up Depth of Field Tables
At close distances, depth of field is a function of magnification, rather than focal length. These tables are applicable to all lenses capable of these reproduction ratios. 0.001in. is approximately 0.0254mm.
Depth of Field in Inches and decimal fractions for scale of reproduction (after Reynolds)
Aperture | 0.1 (1:10) | 0.17 (1:6) | 0.25 (1:4) | 0.5 (1:2) | 1 (1:1) |
---|---|---|---|---|---|
f2.8 | 0.31 | 0.12 | 0.056 | 0.017 | 0.0056 |
f4 | 0.44 | 0.17 | 0.08 | 0.024 | 0.008 |
f5.6 | 0.62 | 0.23 | 0.11 | 0.034 | 0.011 |
f8 | 0.88 | 0.34 | 0.16 | 0.048 | 0.016 |
f11 | 1.21 | 0.46 | 0.22 | 0.066 | 0.022 |
f16 | 1.76 | 0.67 | 0.32 | 0.096 | 0.032 |
f22 | 2.42 | 0.92 | 0.44 | 0.13 | 0.044 |
f32 | 3.5 | 1.34 | 0.64 | 0.19 | 0.064 |
f45 | 4.9 | 1.90 | 0.90 | 0.27 | 0.090 |
Circle of Confusion 0.001 in. Values given are the field in front or behind the plane of focus. Double them for total field.
Depth of Field in Millimetres for scale of reproduction (after Reynolds)
Aperture | 0.1 (1:10) | 0.17 (1:6) | 0.25 (1:4) | 0.5 (1:2) | 1 (1:1) |
---|---|---|---|---|---|
f2.8 | 7.75 | 3 | 1.4 | 0.425 | 0.14 |
f4 | 11 | 4.25 | 2 | 0.6 | 0.2 |
f5.6 | 15.5 | 5.75 | 2.75 | 0.85 | 0.275 |
f8 | 22 | 8.5 | 4 | 1.2 | 0.4 |
f11 | 30.25 | 11.5 | 5.5 | 1.65 | 0.55 |
f16 | 44 | 16.75 | 8 | 2.4 | 0.8 |
f22 | 60.5 | 23 | 11 | 3.25 | 1.1 |
f32 | 87.5 | 33.5 | 16 | 4.75 | 1.6 |
f45 | 122.5 | 47.5 | 22.5 | 6.75 | 2.25 |
Circle of Confusion 0.001 in. (0.0254mm) Values given are the field in front or behind the plane of focus. Double them for total field.