All Questions
Tagged with aperture depth-of-field
64
questions
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-...
- 117
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
...
- 155
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....
- 77
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 ...
- 155
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 ...
- 51
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 ...
- 167
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 ...
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
1
vote
2
answers
818
views
Changing depth of field of Nikon D5200
I've been trying to change the depth of field on a Nikon D5200 for 2 hours and I can't seem to get it to work. I have to take photos and videos of people tomorrow (this is not my camera). The depth of ...
2
votes
1
answer
89
views
Depth of field and aperture size [duplicate]
Why does a smaller aperture size have a high depth of field? What is the physics behind this?
- 21
21
votes
3
answers
8k
views
How can a smartphone take pictures of a landscape with everything in focus?
After the announcement of the new Samsung Galaxy S9 with the new camera that changes aperture, I caught myself wondering: if smartphones have such a wide aperture (f/2.8, f/2.2, etc), how are ...
- 311
0
votes
4
answers
383
views
Which aperture value determines depth of field on variable aperture lenses?
Do variable aperture values represent the way in which depth of field is rendered by a lens or only to the transmission of light (i.e the brightness)?
For example, if i wish to calculate depth of ...
- 626
3
votes
6
answers
4k
views
Why do we need a DOF preview button?
Why not just show the effective depth of field, by default?
What's the point of having it display a picture that's different to how the image will actually turn out?
My first thought was, it must be ...
- 615
-1
votes
1
answer
1k
views
How to get a blurred background using a Canon 18-55 STM lens? [duplicate]
I'm totally new to photography and need your help.
I've read much about ISO, Aperture and Shutter speed. I know to get a blurred backround: use a wide aperture. Also I know the distance between ...
- 13
4
votes
3
answers
175
views
What type of lens should I buy if I want strong out-of-focus blur?
I'm looking for a lens to focus on one thing, and the background is really blurred out. I also want really good quality. I was looking a 50mm prime.
- 49
8
votes
5
answers
991
views
Maximizing bokeh in the foreground?
Another question asks, How can I maximize the “blurry background, sharp subject” (bokeh) effect?
Rather than the background, I am interested in blurring the foreground. What techniques or advice are ...
- 207
1
vote
5
answers
3k
views
Does shooting landscape at lower f-stop produce reasonably sharp images?
This article argues that,
50mm prime lenses, on the other hand, have a maximum aperture of
somewhere between f1.2 and f2, letting you hand hold photos in much
lower light levels (they also give ...
- 683
0
votes
2
answers
7k
views
Does F number stay the same between 35mm and Medium Format?
Rented a medium format camera to see "what is this medium format look" everyone talks about! and evaluate if it is awesome enough to start saving money for it or not.
So my own camera is a ...
- 2,460
4
votes
2
answers
3k
views
Why is the Depth of Field Preview button necessary?
I've looked far and wide but i cannot find the answer for this question.
I know some older cameras and lenses used to have aperture rings on them, which allowed the user to set how open or closed the ...
- 141
1
vote
2
answers
2k
views
How does aperture affect focus area? [duplicate]
How does the aperture affect the focus area? Here are some examples:
With an 35mm(50mm)/f1.8 prime lens
What f-value will bring a group of people standing in five rows into
focus?
What f-value will ...
- 243
1
vote
4
answers
941
views
Does aperture effect the "depth" of faces in a portrait? Wide aperture make noses look shorter, wrinkles less pronounced?
Having a debate with myself that F/10 makes my portraits look better by making faces have less "depth."
What I mean is I feel like wider apertures such as f/4 make my nose look longer and wrinkles ...
- 111
1
vote
3
answers
3k
views
What's the furthest you should stand with a 35mm lens at f1.8?
I understand the principles of depth of field, but am unclear as to what the recommended further distance is when you want to use a lower f stop. Surely at some point, your subject will go out of ...
3
votes
2
answers
129
views
What's worse for post-processing blurriness, graininess or softness?
Context
Using an a6000, I've been learning a lot about photography and how to control the
depth of field (by changing the aperture), blurriness (by changing the shutter speed), and the noise floor/...
- 2,063
2
votes
2
answers
294
views
Automatic Depth-of-Field in modern cameras?
What modern cameras (DSLR or mirrorless) have automatic depth of field exposure setting functionality? It would be desirable for example to specify a desired DOF based on subject size (or 'depth') ...
- 121
7
votes
5
answers
18k
views
Is it possible to change depth of field in RAW images?
I am beginner to photography, and I've learnt that we can do a lot of post-production in images by using RAW format. I'm looking for options to change/modify the depth of field in the RAW images - is ...
- 173
1
vote
1
answer
492
views
Mathematical relation between aperture and DOF [duplicate]
I know that aperture and DOF are inversely proportional. But, can anybody explain to me the Physics/Optics behind that? What's the mathematical relation that relates aperture with DOF?
- 683
5
votes
3
answers
3k
views
Why should I use the widest aperture for star photography?
In the article, Photographing Stars Using a Kit Lens, the author talks about keeping the widest aperture, e.g. ƒ/3.5. But it's my understanding that a wide aperture means a smaller area will be in ...
- 155
1
vote
0
answers
34
views
For the same attainable sensitivity, how does DOF depend on sensor size? [duplicate]
It's well known that all other settings being the same, larger sensor translates into a shallower DOF.
However, for the same number of pixels, doubling linear size of the sensor size would quadruple ...
- 339
1
vote
1
answer
3k
views
Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length?
Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length (the kit lens for my T3i)?
I'm looking for a cheap lens that offers a wide ...
- 13
5
votes
3
answers
585
views
Is it possible to get smaller aperture with diaphragm in front of the lens?
My camera has narrowest aperture of f8. To increase depth of field, could I place an opaque "filter" or lens-cap with a small hole, e.g. 12 mm for f16, on the lens? I realize that at short f.l. the ...
- 2,636
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