>No, Peter, I use A-priority mode for bracketed sets. The >camera varies the shutter speed to achieve the appropriate >exposure setting.
Yes, OK, A priority makes sense to me.
But I am having difficulty understanding the change made in between the two sets of three exposures. I would think that if you are in anything but manual, and you spin the dial three clicks in between both sets of 3 bracketed exposures, wouldn't the three sets be identical in terms of variations around the correct exposure?
>I've never actually tried bracketing in M >mode. I don't think it will work unless it varies the ISO??? >Not a good plan for HDR in my opinion.
I have zero experience with bracketing... I would think that one would want to vary shutter and/or ISO and leave aperture unchanged during bracketing. This would maintain consistent depth of field (and perhaps focal length too as that varies a bit with aperture).