Alley in Pisa, Italy

by Lars Kotthoff

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4
votes
1answer
284 views

What are some good examples of using ND filter with wide apertures?

Usually pictures shot with ND filters look like this one. The typical recommendation is to combine ND filter with narrow aperture to get slower shutter speed. This results in a very big depth of ...
5
votes
2answers
590 views

What is a good rule of thumb to use large aperture for portraits vs showing more background?

I recently got a Canon 50mm and have found myself probably over-using the large apertures for portraits. I'm curious if anyone has a good rule of thumb for when to avoid it. My sense is that its ...
6
votes
1answer
634 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
3k 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
2k 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 ...
12
votes
8answers
3k 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
405 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 ...