The Photo Assistent app helps you calculating useful photography related data like the depth of field (DOF) or the hyperfocal distance, depending on the used camera and the selected focal length, aperture et cetera.
At the moment "Photo Assistent" supports over 300 cameras and provides the following functions fot photographers:

- calculations in meters/centimeters or yards/inches
- DOF calculator
- calculation of the hyperfocal distance (HF distance)
- calculation of shutter values for single-shot milkyway photography
- calculation of shutter-speeds for pictures taken out of hand
- calculation of print-sizes for photo-prints and wall-prints
- tables and cheat charts for aperture values and other photography related suff

Have fun!