Dept of Field Data

[HDNitehawk]

I’m afraid an in-camera DOF calculator isn’t that easily implemented. There are a few important parameters unknown to the camera: The size of the final image/print, the viewing distance and the eyesight of the viewer. And if you don’t know these parameters you can’t calculate the DOF.

Print size wouldn’t matter as far as the calculator goes. The camera does know focus distance, it displays this in the exif files with some programs. My near sightedness doesn't affect the DOF of my pictures. I think it is easily implemented, and should be as accurate as the ones that are on-line. On-line calculators only need to know a few things; lens, aperture, distance and sensor size. All of the pieces of information are available in camera.