Depth of field scales are elegant tools for quickly and easily calculating depth of field and hyperfocal distance. Unfortunately, lens manufacturers don't engrave scales on lenses anymore. Now you can use DOF to make your own scales. Use DOF to make depth of field scales for use in the field. Just set the focus distance, and read the near and far focus distances. Easily calculate the hyperfocal distance for your lens at any aperture.

Customize the scale for your needs:
1)Use feet or meters on the distance scale;
2)Stretch or shrink the distance scale as necessary for focal lengths from 3 mm to 1200 mm;
3) Select apertures as small as f/64;
4) Choose any circle of confusion by model.