This download (409KB) is a

demo version for Palm 5.1+

where the aperture is fixed at f8. To install the Douglas Depth of Field and Hyperfocal Distance Calculator on your Palm download cam_palm.zip from the Download link below to your desktop and extract the file camera.prc. Then double click on camera.prc which allows Quick Install to install the software on your Palm. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have installed the trial version, get the user name that appears in the "User" window, then go to our online shop and select the "Unlock Palm 5.1+ Now" link. You will then be asked for the user name and will receive a 6 digit serial code via email.

This download (75KB) is a

demo version for Pocket PC 2002/3 and Windows Mobile 5/6

where the aperture is fixed at f8. To the Douglas Depth of Field and Hyperfocal Distance Calculator on your Pocket PC device download cam_ppc.zip from the Download link below on to your desktop. The file contains one installation file, Setup.exe, which will work for Pocket PC 2002/3 and Windows Mobile 5/6. Extract the file and then double click on it to install the software to your handheld with the help of ActiveSync. If your handheld is not connected at the time ActiveSync will, or should, save it for installation at a later date. Click here for information regarding Pocket PC installation issues. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have installed the trial version get the user name from the "User" window, then go to our online shop and select the "Unlock Pocket PC 2002/3 or Windows Mobile 5/6 Now" link. You will then be asked for the user name and will receive a 6 digit serial code via email.

This download (2.05MB) is a

demo version for Mac OSX 10.2+

where the aperture is fixed at f8. To install the Douglas Depth of Field and Hyperfocal Distance Calculator on your Mac download cam_mac.zip from the Download link below, double-click it and drag the resulting cam_mac folder to your applications folder. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have installed the trial version get the 8 digit serial number from the "Serial No" window, then go to our online shop and select the "Unlock Apple Macintosh OSX 10.2+ Now" link. You will then be asked to enter the 8 digit serial number and will receive a 6 digit serial code via email.

This download (3.30MB) is a

demo version for Windows 95, 98, ME, XP, Vista or Windows 7

where the aperture is fixed at f8. To install the Douglas Depth of Field and Hyperfocal Distance Calculator on your PC download cam_win.zip from the Download link below on to your desktop. The file Setup.exe should be extracted and then run to install the software. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have installed the trial version get the 8 digit serial number from the "Serial No" window, then go to our online shop and select the "Unlock Windows 95, 98, ME, XP, Vista or Windows 7 Now" link. You will then be asked to enter the 8 digit serial number and will receive a 6 digit serial code via email.

This download (3.5MB) is a

demo version for Windows 95, 98, ME, XP, Vista or Windows 7

. To install this software just download world430.exe from the Download link below to your desktop and install it from there by double clicking on it. To unlock the full version after you have installed the trial version get the 8 digit serial number from the "About" window, then go to our online shop and select the "Unlock Windows 95, 98, ME, XP, Vista or Windows 7 Now" link. You will then be asked to enter the 8 digit serial number and will receive a 6 digit serial code via email.