Narnian
Nobody in particular ...
I understand what IS does, but what does it exactly buy you in terms of shutter speed?
Do I get the same effect as a non-IS lens at 1/50 sec if I use an IS lens of the same focal length at 1/25? Is there a rule of thumb?
Do I get the same effect as a non-IS lens at 1/50 sec if I use an IS lens of the same focal length at 1/25? Is there a rule of thumb?