Specifications

When focusing on a subject, there is an area behind and in front of the focused point that is also in focus. This area is called depth of field. The amount of area behind a focused point will always be greater than the area in front of the focused point regardless of aperture. Depth of field becomes deeper when the focal length is short (wide-angle lens), the focusing distance is long, and aperture is small.

	0.147	0.3	0.4	0.5	0.7	1.0	2.0	3.0	5.0	∞
3.5	0.147 to 0.147	0.298 to 0.302	0.395 to 0.405	0.491 to 0.509	0.682 to 0.719	0.961 to 1.043	1.840 to 2.192	2.647 to 3.464	4.080 to 6.469	21.635 to ∞
4	0.147 to 0.147	0.297 to 0.303	0.394 to 0.406	0.490 to 0.510	0.680 to 0.722	0.956 to 1.048	1.821 to 2.220	2.607 to 3.537	3.983 to 6.732	19.102 to ∞
5.6	0.147 to 0.147	0.296 to 0.304	0.392 to 0.408	0.487 to 0.514	0.672 to 0.731	0.939 to 1.070	1.757 to 2.326	2.474 to 3.821	3.675 to 7.866	13.521 to ∞
8	0.147 to 0.147	0.295 to 0.306	0.389 to 0.412	0.481 to 0.521	0.660 to 0.745	0.916 to 1.102	1.673 to 2.496	2.307 to 4.315	3.314 to 10.343	9.587 to ∞
11	0.147 to 0.147	0.292 to 0.308	0.384 to 0.417	0.474 to 0.530	0.645 to 0.766	0.886 to 1.151	1.567 to 2.785	2.108 to 5.283	2.912 to 18.700	6.803 to ∞
16	0.146 to 0.148	0.289 to 0.312	0.378 to 0.425	0.464 to 0.543	0.626 to 0.798	0.847 to 1.229	1.440 to 3.335	1.880 to 7.770	2.488 to ∞	4.830 to ∞
22	0.146 to 0.148	0.285 to 0.317	0.370 to 0.436	0.451 to 0.564	0.600 to 0.848	0.797 to 1.362	1.294 to 4.650	1.633 to 23.788	2.067 to ∞	3.436 to ∞