CanonModel,  Version 1.00
Return the Canon camera model for the specified image file

Usage:  FOR /F "tokens=*" %%A IN ('CANONMODEL  imagefile') DO SET camera=%%A

   or:  CANONMODEL  imagefile
        SET camera_number=%ErrorLevel%

Notes:  This version only detects PowerShot D* and EOS *D models.
        Works for unmodified Canon RAW or JPG images.
        Camera model is displayed on screen (e.g. "Canon EOS 50D") and returned
        as "errorlevel" (e.g. 50).
        An errorlevel 0 implies the image was not found or was not made with a
        Canon EOS *D or Canon PowerShot D* camera.
        The author is in no way associated with Canon Inc., besides being the
        owner of several Canon cameras.

Written by Rob van der Woude
http://www.robvanderwoude.com