This question may not be in the right section, but since this is a 1Ds2 thread.....I'm hoping someone can help.
I have a 1Ds2 and when I put my 580ex II on it everything works fine, until I change the flash to Manual. For some reason, when I change the flash to Manual it sets the shutter speed to 1/250 in Av mode. No matter which dial I turn, the SS stays at 1/250. The same thing for P mode, not that I use P, but maybe that information is helpful.
I would like to be able to use my flash in Av mode and not have the SS locked at 1/250, what do I need to do in order to correct this?
Thanks in advance!
EDIT: After further investigation, here is what I am getting:
In ETTL mode on flash, no problems at all.
In Manual mode on flash:
Av Mode: SS locked at 1/250, aperture can be changed
P Mode: SS locked at 1/250, aperture locked at f/22
M Mode: SS can be changed, aperture can be changed
Tv Mode: SS can be changed, aperture locked at f/22
If I turn on HSS on the flash, the SS locks at 1/8000 on the camera when in Av mode.
Therefore, I took the 580ex II off my 1Ds2 and put it on my 40D, turned on the 40D and changed all the shooting modes....absolutely no issues with the 40D and Manual mode on the flash.