i am using an ixus 75 / sd750 (FW GM1.02A) on a quadrocopter platform for aerial photography (www.mikrokopter.de
), up to now just taking serial pictures that i trigger before takeoff. then i heard about CHDK on 25c3 and that you can use a mini usb cable to control the camera.
the flight control board of the mikrokopter has 5v outputs which you can switch from the remote. connected it with mini usb jack to trigger the shutter. many have done this successfully with the ixus 80 and other cams of the ixus family using this setup:http://gallery.mikrokopter.de/main.php/v/tech/usbausloeser.jpg.html
german forum: http://www.mikrokopter.de/forum/topic-post96897.html#post96897
here comes the problem, not so with my ixus 75: with or without a script running or even any sd card inserted, switching on the 5v via the RC makes the camera toggle to review mode. when i switch back, the mode changes back to camera as well. so my "trigger" has the same function than the PLAY button of the camera.
is there there anything special about the ixus 75 or does anybody know what i can do to make the ixus 75 react by releasing he shutter?
thanx to anyone answering!