Questions tagged [aperture]
Aperture is the opening in the diaphragm of a camera lens. For questions relating to Apple's photo management software, please use [apple-aperture] instead.
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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....
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What is the relation between aperture number and exposure, keeping all other parameters fixed?
My language is German, so forgive my lack in English words, especially with regard to photography.
I tried to understand at a very basic level the relation between aperture number and exposure and ...
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Why is my aperture mode taking forever to take a photo of the moon?
I tried to take a photo of the moon, I was in Aperture mode but it was like a self timer was on. It took ages, it took that long, I had to turn off the actual camera and of course, it took as soon as ...
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Aperture setting on the camera vs. the lens
I have a Canon 80D and have a question about the aperture setting on the camera vs. the lens.
I know about aperture, and my understanding is it's similar to how your eye works in letting in more or ...
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how to find best FX camera to avoid diffraction at small apertures
Long time Nikon user. Looking to capture highest resolution images at smallest apertures possible in order to obtain most depth of field.
Have read various scientific writing about diffraction and ...
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There are many f2.8 zooms for FF. Why are there so few f2/f1.8 zooms for APS-C?
APS-C/Super35 cameras are less staple for film than they were before, but are still widely used. Besides, there are quite a few semi-professional APS-C DSLRs on the market.
As far as I understand, a ...
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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 ...
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Why does an iPhone need software for Portrait Mode? [duplicate]
I have an iPhone X, with a camera specs of:
Wide-angle: ƒ/1.8 aperture
Telephoto: ƒ/2.4 aperture
Why does the phone need software to produce Portrait Mode image (image with background blur / bokeh)? ...
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New but old Canon 20 - 35mm f3.5 - 4.5 will no longer stop down to f 3.5
Need some info/help please. I have a 6dmk2. I bought a brand New/Old Canon 20 - 35mm f3.5 - 4.5 Love this lens, inexpensive, light and exactly what for my needs. PROBLEM: it will no longer stop down ...
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focal length to aperture relation while zooming - is my russian lens lying to me?
I have this old soviet/russian "Granit" 80-200mm lens, connected to my Canon 550d DSLR through M42 adapter. I also have "modern" kit 18-55mm lens.
What I don't get is how aperture ...
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How do you know how much of an effect on the image will be when using a strangely shaped aperture like star-shaped or heart shaped?
Compared to regular pentagonal aperture, what effect does the image have if you use the aperture of the shape below?
The above aperture has a pentagonal shape and has a protruding part to the side.
...
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Using FF lens on APS-C changes lens aperture value?
Someone told me that hen using Full frame lens on APS-C camera (1.5x crop factor) in addition to multiplying focal length by crop factor (e.g. 35mm * 1.5 = 52mm actual focal length on APS-C) you also ...
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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 ...
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Why does my lens aperture stop working a few hours after attaching the lens?
I recently purchased a used Sigma 105mm f2.8 DG OS Macro lens, and when I tested it during the purchase everything worked fine. A few hours later when I tried it again, I noticed that my pictures were ...
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Any modern camera that has a visual aperture indicator?
On the back of the Nikon D3200 seen in the picture we can see a graphical representation of the selected aperture. Are any modern cameras able to show that in some mode?
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Can aperture be changed in aperture mode even with a constant maximum aperture lens?
I am new to non-auto mode.
If I have a fixed aperture lens with f/2.8 16–35 mm. Does this mean I cannot change the aperture to f/4 or f/5 on my camera because the lens only supports f/2.8?
Is the f/2....
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Is using a low F-number (wide aperture) for landscape photography a good practice?
I recently asked a question (How to increase the quality of photos taken through a DSLR?) on how to increase the sharpness of my images.
One of the answers proposed that even though it is known that ...
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Why is it not possible to change Aperture in Livewiev on a Nikon D5300 when using manual movie settings?
I've been using my Nikon D5300 for about 1.5 years and have recently started to use it for some video work as well. I realized that when manual movie settings are turned on and you go to live view, ...
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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 ...
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Is the noise coming from fast aperture ring adjustments of Sigma 100-400m lens on Sony A6500 expected?
I recently got a Sigma 100-400mm for my Sony A6500 and love it so far. But I noticed that the aperture ring makes noticeable noise on power ON and power OFF. See Google Photos album of two videos ...
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I can't change shutter speed
I recently got a Nikon D3100. But I have a problem now: I can't change shutter speed or aperture in any mode. I am stuck at 1/4 and when I try to wheel it shows me 1/3 for a second and then switches ...
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What is the bokeh difference between 1/2.3" f/0.95 cell phone and 1" f/1.8 compact camera?
I am thinking of buying a Sony RX100 (mark i). The thing is, I am gonna use it for pet, flower photography, and I really like the f/0.95 lens on my cell phone camera. It produces creamy bokeh with 1/...
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Why 1 sunbeam for each aperture blade in your lens? [duplicate]
I don't understand the embolded phrase below. I'm unschooled at physics and photography.
Starburst and Sunstar Effects
Starbursts, also called sunstars, are beautiful elements that you’ll find in ...
user81115
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Why does high brightness affect white balance correction?
I am starting to shoot with a Nikon D5200. Today, the light is bright and diffuse because of clouds. In M mode with f at 5.6, I set the white balance preset as per the manual, and often get an error &...
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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 ...
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Would a Canon EF 800 f/5.6 with a 2x extender on a Raspberry Pi camera work? (9024mm focal length, f/90.24)
The new raspberry pi high quality camera has a sensor size of 1/2.3", with a C-mount. If I attach a C-mount to Canon EF lens adapter, then a 2x extender, then the Canon EF 800mm f/5.6 L IS USM, from ...
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EOS 250D the aperture changing only when picture is taken
I have yongnuo 50mm f1.8 lens
In Av Mode When I m changing the fstop the diaphragm blades remains fully open and depth of field doesn't change
I have looked to user Guide and find that I can assign ...
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How can I control the aperture of a Nikon G lens when using extension tubes? [duplicate]
Due to corona lockdown, I'd like to try macro photography. I have two lenses (18–55 and 35 f/1.8) and a Nikon D5300. As I currently do not have the money to buy a real macro lens, I found 3 cheaper ...
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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 ...
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What's the difference between aperture value and f-number?
In macOS Finder it says a photo taken at f/2.8 has an aperture value of 3. What is an aperture value, and how is it different from f-stop?
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