I was wondering how you set up your camera so that it uses auto exposure and can automatically choose 1"+ exposure times, hopefully even more than 15". When I set my camera to force a long exposure time via the chdk, when I go to take a picture at night, my camera goes into a mode that actually does do an automatic long time exposure up to 15", but it doesn't matter because I am forcing a particular exposure already. So it's not actually automatic.
In effect, this setting is unlocking longer exposure times, but forcing a specific one which I don't want.
The purpose I want this for is to do time lapses during night, all the way through to daytime. As it is now, I can force it to go all the way to 64" exposure, but as soon as the sun comes up it's worthless because it just turns white obviously.
My camera is the SD750, I am running ixus75_sd750-102a-0.9.9-1188-full. I have heard of people doing nature time lapses for days so I assume this is possible, I just can't figure out how. I use the main intervalometer, "ultra intervalometer" I think... and I like it and I think it is probably possible to do what I am trying to accomplish with it but I don't know how...
