Can someone explain something to me?
For example, saw this lens on the Sigma website
Sigma 135-400mm F4.5-5.6 DG
What does the F4.5-5.6 mean? I know normally it is the maximum aperture, but i'm sure this does not mean the MINIMUM aperture is 5.6 right? Is there a way to see the MINIMUM aperture?
For example, saw this lens on the Sigma website
Sigma 135-400mm F4.5-5.6 DG
What does the F4.5-5.6 mean? I know normally it is the maximum aperture, but i'm sure this does not mean the MINIMUM aperture is 5.6 right? Is there a way to see the MINIMUM aperture?