Lars Johnsson wrote:
You can't know that. If it needs +9 on your 5D2. It doesn't mean it also need that on a SL 1 or any other camera. Not even another 5D2.
Point taken, but I have tried my 50L on my friends cameras, and +/- 0 was never an option.
All cameras should have AFMA. Even my lens only needs +2 on the SL1, I should be able to set it.
I am no marketing expert, but I think Canon would sell more cameras (backup cameras) if they allowed AFMA on all models.