We use the term "equivalent focal length" on the crop factor in dSLRs for the smaller sensor size. Is there an equivalent 'f-stop'?
When i use a 50/1.4 on a full-frame, the image brightness is at f1.4. How about on an dSLR with a 1.6x? Is it still f1.4 or faster, or slower?
From what i understand, when an image is f1.4, every single point on the image is at 'f1.4 brightness', cropped or not. So i believe even with a 1.6x, the lens is still a f1.4 lens. Is this understanding correct?
If not, what is the correct way to calculate 'effective f-stop' on a crop?
When i use a 50/1.4 on a full-frame, the image brightness is at f1.4. How about on an dSLR with a 1.6x? Is it still f1.4 or faster, or slower?
From what i understand, when an image is f1.4, every single point on the image is at 'f1.4 brightness', cropped or not. So i believe even with a 1.6x, the lens is still a f1.4 lens. Is this understanding correct?
If not, what is the correct way to calculate 'effective f-stop' on a crop?