Im using a EOS 1D(s), and things look a little dark, whats wrong?
A12: This is a very good question, and the jury is still out on this one. It would seem that the EOS 1D, and the 1Ds both underexpose the flash by 2/3 to 1 stop. Some say this is to prevent blown out highlights, since it is easier to recover an underexposed picture than an overexposed one. I have never seen an official statement from Canon on this, and I can easily and consistently reproduce this situation on both the 1D and 1Ds that I have access to. The flash underexposure is only obvious when the flash is the only source of light, and only manifests itself when the flash unit(s) are in ETTL mode. My solution is to dial in about 1 stop of flash exposure comp, which takes care of the problem. Interestingly, the amount of flash underexposure on the 1D(s) produces near perfect results when the camera is set to Av mode, and the flash is being used as fill (as I discuss in Q8,Q13 and Q16), which might lead one to wonder if perhaps Canon engineers set the camera up to give perfectly natura
