Thanks for that! I have been using /this/ worksheet because I am interested in focusing closer and knowing what my actual depth of field is wrt CoC.
The problem is that selecting a table of f-stop v focal length values is fine, but the object distance is an active variable for me. It constantly changes, and the DoF I am interested in is pretty shallow.
See
http://www.downeastengineering.com/public_imagesfor some examples (not the sunrise images).
# British Soldier Lichen.5.3072x2304~4.4MB.gif
# British Soldier Lichen.5.768.576.gif
# rosemary flowers double.2.gif
BTW, those big blue things are wild Maine blueberries, about 8-10mm in diameter.
There are a few Palm apps out there, but not as convenient for me because I am not as interested in the hyperfocal distance. (Yur program is still useful because I can print just the final table and view the PDF on my Palm.
Rich
http://www.downeastengineering.com/