I have a Pentax Af360 and a Sigma 530 Super. I'm trying to figure out if I can reliably use the AUTO on the flashes to make sure I have the proper exposure for a set aperture.
When I tell my 360 to shoot out f8 at, lets say 10 ft, my meter reads it as a stop or two less than what I put in (close to f4.5 or 5.6). I'd hope that if I dial in f8 that I'd get f8. I know the meter's ok because I can take well exposed pictures with it using ambient light. And when I DO use the flashes on manual mode at a given power level then the exposure matches what I have on my meter (Minolta Flashmeter IV).
So, should I just stay in manual and adjust each flash's power to get the light I need? I wonder if thats the only way to stay consistent.