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View Full Version : Fast lens vs Slow lens



Rando
10-25-2006, 02:58 PM
How is a fast lens better than a slow one in a low light environment, if you have to reduce de f-stop and blur everything behind your subject, or blur part of your subject? If you don't want to blur anything, you have to use a medium f-stop and the photo will be the same. What am I missing? For example, in a group photo with low light, I assume that with a small f-stop the photo will be blurry. Where am I wrong?

forno
10-25-2006, 03:36 PM
Bluring by f-stop is a creative effect, bluring by low shutter speed as a result of a slow lens is not desirable unless you are shooting static subjects with a tripod

Paul79UF
10-25-2006, 06:35 PM
Bluring by f-stop is a creative effect, bluring by low shutter speed as a result of a slow lens is not desirable unless you are shooting static subjects with a tripod

very well said...

A fast lens is good for low light, but you'll just have to choose your focus and composition carefully since closer/further objects will appear soft and out of focus.