DepthOfField Hyperfocal Distance
When shooting landscapes it can be difficult to get the whole scene sharp and knowing the hyperfocal distance will help you to do so. This is the distance that you should focus on to maximise depthoffield, thus keeping the whole scene sharp. When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance out to infinity will be acceptably sharp.
You can guess the hyperfocal focusing distance, but life is much easier if your lens is marked with a depthoffield scale. This used to be regarded as an essential feature, but with the development of wideranging zooms many manufacturers now omit one. If you do have such a scale, simply line up the infinity mark against the mark for the aperture you've set and, although the image in the viewfinder will look outoffocus, the finished image will be sharp from front to back.
There is a mathematical formula which can be used to find the hyperfocal distance:
H = ( f2 / Nc ) + f where f is the focal length, N is the aperture and c is the circle of confusion. To create the tables below which can be used for reference, we have taken the circle of confusion to equal 0.029mm for full frame DSLR's, 0.019mm for APSC Nikon/Sony/Pentax, 0.018mm for APSC Canon and 0.015mm for Four Thirds.
You can guess the hyperfocal focusing distance, but life is much easier if your lens is marked with a depthoffield scale. This used to be regarded as an essential feature, but with the development of wideranging zooms many manufacturers now omit one. If you do have such a scale, simply line up the infinity mark against the mark for the aperture you've set and, although the image in the viewfinder will look outoffocus, the finished image will be sharp from front to back.
There is a mathematical formula which can be used to find the hyperfocal distance:
H = ( f2 / Nc ) + f where f is the focal length, N is the aperture and c is the circle of confusion. To create the tables below which can be used for reference, we have taken the circle of confusion to equal 0.029mm for full frame DSLR's, 0.019mm for APSC Nikon/Sony/Pentax, 0.018mm for APSC Canon and 0.015mm for Four Thirds.
Depth of Field HyperFocal Distance Charts  
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File Type: 
FullFrame DSLR
16mm 
20mm 
24mm 
28mm 
35mm 
50mm 
100mm 
135mm 
200mm 
300mm 

f/2.8 
3.2m 
4.9m 
7.1m 
9.7m 
15.1m 
30.8m 
123.3m 
224.6m 
492.8m 
1108.7m 
f/4 
2.2m 
3.5m 
5.0m 
6.8m 
10.6m 
21.6m 
86.3m 
157.2m 
345.0m 
776.2m 
f/5.6 
1.6m 
2.5m 
3.6m 
4.9m 
7.6m 
15.4m 
61.7m 
112.4m 
246.5m 
554.5m 
f/8 
1.1m 
1.7m 
2.5m 
3.4m 
5.3m 
10.8m 
43.2m 
78.7m 
172.6m 
388.2m 
f/11 
0.8m 
1.3m 
1.8m 
2.5m 
3.9m 
7.9m 
31.4m 
57.3m 
125.6m 
282.4m 
f/16 
0.6m 
0.9m 
1.3m 
1.7m 
2.7m 
5.4m 
21.7m 
39.4m 
86.4m 
194.3m 
f/22 
0.4m 
0.6m 
0.9m 
1.3m 
2.0m 
4.0m 
15.8m 
28.7m 
62.9m 
141.4m 
f/32 
0.3m 
0.5m 
0.6m 
0.9m 
1.4m 
2.7m 
10.9m 
19.8m 
43.3m 
97.3m 
APSC Nikon/Sony/Pentax
16mm 
20mm 
24mm 
28mm 
35mm 
50mm 
100mm 
135mm 
200mm 
300mm 

f/2.8 
4.8m 
7.5m 
10.9m 
14.8m 
23.1m 
47.0m 
188.1m 
342.7m 
752.1m 
1692.0m 
f/4 
3.4m 
5.3m 
7.6m 
10.3m 
16.2m 
32.9m 
131.7m 
239.9m 
526.5m 
1184.5m 
f/5.6 
2.4m 
3.8m 
5.4m 
7.4m 
11.5m 
23.5m 
94.1m 
171.4m 
376.1m 
846.2m 
f/8 
1.7m 
2.7m 
3.8m 
5.2m 
8.1m 
16.5m 
65.9m 
120.0m 
263.4m 
592.4m 
f/11 
1.2m 
1.9m 
1.8m 
3.8m 
5.9m 
12.0m 
47.9m 
87.3m 
191.6m 
430.9m 
f/16 
0.9m 
1.3m 
1.9m 
2.6m 
4.1m 
8.3m 
33.0m 
60.1m 
131.8m 
296.4m 
f/22 
0.6m 
1.0m 
1.4m 
1.9m 
3.0m 
6.0m 
24.0m 
43.7m 
95.9m 
215.6m 
f/32 
0.4m 
0.7m 
1.0m 
1.3m 
2.0m 
4.2m 
16.5m 
30.1m 
66.0m 
148.3m 
APSC Canon
16mm 
20mm 
24mm 
28mm 
35mm 
50mm 
100mm 
135mm 
200mm 
300mm 

f/2.8 
5.1m 
8.0m 
11.5m 
15.6m 
24.3m 
49.7m 
198.5m 
361.7m 
793.9m 
1786.0m 
f/4 
3.6m 
5.6m 
8.0m 
10.9m 
17.0m 
34.8m 
139.0m 
253.3m 
555.8m 
1250.3m 
f/5.6 
2.6m 
4.0m 
5.7m 
7.8m 
12.2m 
24.9m 
99.3m 
180.9m 
397.0m 
893.2m 
f/8 
1.8m 
2.8m 
4.0m 
5.5m 
8.5m 
17.4m 
69.5m 
126.7m 
278.0m 
625.3m 
f/11 
1.3m 
2.0m 
2.9m 
4.0m 
6.2m 
12.7m 
50.6m 
92.2m 
202.2m 
454.8m 
f/16 
0.9m 
1.4m 
2.0m 
2.8m 
4.3m 
8.7m 
34.8m 
63.4m 
139.1m 
312.8m 
f/22 
0.7m 
1.0m 
1.5m 
2.0m 
3.1m 
6.4m 
25.4m 
46.2m 
101.2m 
227.6m 
f/32 
0.5m 
0.7m 
1.0m 
1.4m 
2.2m 
4.4m 
17.5m 
31.8m 
69.6m 
156.6m 
When you have found the value required from the tables you simply need to set the lens focus to the distance and the depthoffield will extend from half that distance to infinity, if you have a lens with a distance scale on. If not you have to estimate the distance and focus on it.
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View the full article here