I'm learning how to use an external auto-thyristor flash (a emoblitz 328 to be exact) on a d70. I have difficulties in understanding the following situations:
1) When shooting in dark situations using A mode (to match flash setting of f/2.8), camera sets a very low shutter speed, as though no flash is present. Pic is overexposed.
2) When trying to bounce flash, pic is underexposed. (i thought the sensor is supposed to detect how much light enters, not how far subject is from cam?)
I thought of using M mode to fix aperture and prevent cam from setting low shutter speeds. But i dunno what speed to set to have a good balance between subject and background. Is there any guide i can follow?
By the way, is the sensor directional? Will the flash output be affected if the subject is off centered?