Tagged Questions
6
votes
1answer
356 views
Why does wide angle lens adapter + large aperture make images blurry?
I have a kit 18-55mm lens on my Canon. I also have a .45 wide-angle lens that I use on the kit lens. The results are fairly sharp.
When I try to use the .45 wide-angle lens on the 50mm @ f/1.4, it ...
3
votes
5answers
2k views
In what kind of scenes does it make sense to use f/1.4 aperture?
I have been told that it is difficult to focus with an aperture of f/1.4.
So, in which kind of scenes does it actually make sense to use the f/1.4?
In portraits they say that it is important to keep ...
11
votes
4answers
751 views
Is overall light gathering of a lens only dependant on aperture?
My impression is that the aperture value of a lens determines its light gathering ability, but I'm not sure I understand how it works...
When considering light gathering in telescopes, it is ...
10
votes
8answers
2k views
Will using a lens at max aperture (“wide open”) result in poor images?
I’m looking to add a second lens to my kit lens I got with my Nikon d7000.
I have read several reviews on both the 35 and 50 mm lenses made by Nikon in particular that said using either lens at the ...
9
votes
3answers
369 views
Are fast lenses only fast when shot wide open?
Given two lenses with different max apertures but the same size image circle (say, full frame on a Nikon FX DLSR camera) and taking shots at the exact shutter speed and focal length under the same ...
