All Questions
Tagged with aperture depth-of-field
64
questions
25
votes
9
answers
7k
views
Can a smaller sensor's "crop factor" be used to calculate the exact increase in depth of field?
If APS-C and similar crop-sensor digital cameras have a focal length multiplying effect such that a 50mm lens has an apparent focal length closer to the field of view of an 80mm on a full frame camera,...
- 175k
8
votes
5
answers
2k
views
Why do people not use large f-numbers (small apertures) when shooting landscapes, when you want large depth of field?
When some people take photos of the landscape, why do they not use like a low f-stop like f/32, because wouldn't you want everyone in focus because it's a landscape?
But quite a lot of people use f-...
- 647
27
votes
5
answers
7k
views
Why is the depth-of-field preview in the optical viewfinder of my Canon 500D inaccurate?
I have noticed that in my Canon 500D, the depth-of-field preview in the optical viewfinder is inaccurate with large aperture settings.
If I press the DoF preview button, there is very little ...
- 3,445
38
votes
8
answers
32k
views
Technically, why is the out of focus area blurred more when using a bigger aperture?
I'm wondering, technically, why and how does the out of focus areas blur more when using a bigger aperture. I think it'd help a lot if I presented a problem that's been driving me nuts for a long time:...
- 1
1
vote
3
answers
342
views
Why are larger apertures used for astrophotography? [duplicate]
Learning about aperture, and depth of field.
I have understood it as such
...
CommunityBot
- 1
26
votes
4
answers
3k
views
Do smaller apertures provide more depth of field past the diffraction limit, even if peak sharpness suffers?
In Understanding Exposure (3rd edition, on page 48), Bryan Peterson has what might be called a rant against modern on-line conventional wisdom about diffraction limits. Answers on this web site are ...
- 1,194
2
votes
4
answers
156
views
Should I use rounded or exact f-stop values for a depth of field calculator?
I'm designing a DOF calculator. Looking at other calculators, I can see that some of them use rounded values (e.g. f/2.8) and some use exact values derived from the square root calculation (e.g. f/2....
- 1,294
2
votes
9
answers
862
views
Is deep depth of field AND bright exposure possible?
I know that a larger aperture corresponds to a brighter exposure and shallower depth of field for a given focal length.
Is it optically possible for a custom-built camera to form an image with both a ...
- 22.1k
5
votes
4
answers
3k
views
What causes images to have flat depth?
I am learning about photography and I remember reading about an effect that causes images to look like there is no depth but now I cannot find what it is called or what causes it.
I remember an ...
- 103k
1
vote
2
answers
167
views
Canon 70D - shooting video interviews in bright conditions with low aperture
I'm trying to shoot an interview in the middle of the, in the outdoors - which means, it's very bright.
While keeping the aperture low - to keep the interviewee's face in focus, with narrow depth of ...
CommunityBot
- 1
2
votes
3
answers
5k
views
Why didn't I get bokeh with my 50mm f1.8?
Recently I took a photograph at an aperture of f/1.8, but there was very little bokeh. The shot was of a wave with a few boats in the background. Everything seems to be clear even at f/1.8.
Can ...
- 31
1
vote
2
answers
184
views
What are high f-stops (larger than f/5.6) good for when using compact camera?
I carry the Sony RX100M3 with me and usually shoot aperture mode (generally around f/5.6 for deep dof). I notice that my camera allows for very high f-stops up to a maximum of f/11. If I calculate the ...
- 2,239
0
votes
2
answers
5k
views
What impact on image resolution does the aperture have?
What is the effects on depth of field, signal to noise ratio and image resolution when reducing the aperture?
- 833
57
votes
9
answers
144k
views
What is aperture, and how does it affect my photographs?
How does aperture affect my photographs?
Why should I care about the aperture with which a photo was taken?
- 143k
1
vote
1
answer
977
views
Why can't I see changed depth of field on LCD preview on my 2000D after changing aperture?
I have a Canon EOS 2000D camera with Canon EF 50mm f/1.8 lens that can achieve shallow depth of field. If I adjust the aperture settings of the lens on the camera, I'm not seeing any change of depth ...
- 6,835
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