Linked Questions
21 questions linked to/from Is camera lens focus an exact point or a range?
69
votes
5
answers
12k
views
What exactly determines depth of field?
There are several questions here about the definition of depth of field, about focal length, and about subject distance. And of course there's the basic how does aperture affect my photographs. And ...
- 144k
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:...
- 2,693
33
votes
6
answers
6k
views
Is there a 'rule of thumb' that I can use to estimate depth of field while shooting?
I can use a DoF calculator, or crunch the heavy math by hand if I really want to know exactly what my DoF is going to be... but most of the time knowing exactly is actually overkill, and taking the ...
- 26.8k
13
votes
3
answers
91k
views
How can I take a photo with everything in focus with my DSLR?
I am quite new to DSLRs and one of the first things I noticed was the incredible focus points and appearance of depth that you can achieve. That is great in a lot of scenarios, but not in all. When ...
- 343
8
votes
4
answers
4k
views
Why did manufacturers stop including DOF scales on lenses?
Seriously why? I hate it and I hate memorizing it or check my phone app for the depth of field of the current aperture. I find it so useful in old lenses. The DOF preview doesn't help that much ...
- 6,507
11
votes
4
answers
7k
views
How many optical aberration types are there in lenses? And what are they?
Everyone hears something about chromatic aberration but are there any other types? What causes them?
- 753
17
votes
3
answers
4k
views
What is the "Circle of Confusion?"
I know that when I want to calculate Depth of Field by hand one of the variable elements in that equation is the Circle of Confusion. In layman's terms, what is the "Circle of Confusion," how do I ...
- 26.8k
7
votes
2
answers
11k
views
How do you determine the acceptable Circle of Confusion for a particular photo?
I've noticed that several online and/or downloadable Depth of Field Calculators use different values for the acceptable CoC (Circle of Confusion) for some of the same camera models/sensor sizes. This, ...
- 176k
0
votes
3
answers
1k
views
Why I am getting different values for depth of field from calculators vs in-camera DoF preview?
When using depth of field and hyperfocal calculators, I get very different result versus the in-camera DoF preview of my Fujifilm X-M1.
For example:
With DOFMaster (or any other online calculator), ...
- 103
1
vote
3
answers
946
views
Why do we use smaller apertures, such as f8, for landscape photography?
In photography, it seems universally agreed that you should shoot at f8 to f11—basically an aperture before light diffraction comes into play.
I've been quite confused about this for a while. Let's ...
- 382
1
vote
3
answers
389
views
Is there any mirrorless camera that can mark areas within DoF in the EVF?
All mirrorless cameras have the image in the rear LCD and the electronic viewfinder (EVF) fully generated by a computer, making many utilities such as noise removal, text overlays, histograms, etc ...
- 6,855
5
votes
2
answers
682
views
Does aperture really matter if the subject distance is large?
I have calculated the depth of field for my Sony RX100M3. I have done so numerous times for all three parameters: focal length, subject distance and apperture.
I noticed that for sufficiently large ...
- 165
2
votes
3
answers
458
views
Find hyperfocal distance for HD (1920x1080) resolution?
I'm using panohelp.com to prepare tables with hyperfocal distances for my camera. The most important camera-specific info I have to plug in is the circle of confusion (0.019mm for my Canon EOS600D).
...
- 153
2
votes
4
answers
859
views
Pixel: Any camera app to stack subject and background into the same JPG, so that both appear sharp?
I often take pictures with food as the subject (foreground) and a monument in the background.
Problem: Using a recent Pixel smartphone, either subject or background is blurry.
Reading How do I keep ...
- 856
2
votes
4
answers
160
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....
- 77
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