Skip to main content

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.

2 votes
3 answers
440 views

Is diffraction limited aperture independent of lens?

I have always understood diffraction limited aperture as a property of the camera and its sensor, not of the lens. The camera has a certain sensor size and a certain megapixel count, which together ...
juhist's user avatar
  • 6,835
0 votes
3 answers
591 views

How to avoid noise in Aperture Priority mode arising due to auto-ISO?

I was taking photos of birds in a cloudy day and in an area of forest where light was even low under a tree as compared to other areas. I used 70-300 mm kit lens. When trying to take photo even at 1/...
RKh's user avatar
  • 319
1 vote
3 answers
2k views

Why does the lower f-stop in my camera makes the photo darker?

I have a nikon d5100 camera with 35mm/f 1.8 lens. I'm not sure what's going wrong with my camera but my photo with larger f-stop numbers is brighter than the photo with smaller f-stop numbers (the ISO ...
Seng Kai's user avatar
0 votes
3 answers
221 views

Do aperture blades move between each shot in burst mode?

Most professional cameras have a burst mode function. Furthermore, if the camera is SLR, the optical viewfinder shows what happens between the images in the burst, but when an image is taken, there is ...
juhist's user avatar
  • 6,835
7 votes
7 answers
4k views

Is there any reason to change the ISO manually?

Here's my understanding so far. When taking a photo with a digital camera, there are some tradeoffs: Aperture size: bigger aperture lets in more light, smaller aperture means less blurring in space. ...
usernumber's user avatar
1 vote
0 answers
87 views

What are the ISO, exposure, and aperture settings for single frames from slow-motion video on the iPhone 6?

I filmed a video of myself swinging a tennis racket in slow motion and then used cv2 to make jpg's of some of the frames, ie. 8 ...
mLstudent33's user avatar
2 votes
2 answers
14k views

Changing the camera ISO , Aperture, Shutter Speed with Android

I have a smartphone with Android 8.0. I need control over : ISO Aperture Shutter speed Could you please suggest the way to go forward? I do not know how to change any of them? I am using an ...
Suhail Gupta's user avatar
0 votes
3 answers
173 views

Does a camera have to have a contiguous housing?

The lens group in this picture would have its own protective lens tubes like the one on a camera but one for each lens group. What would be an issue having a gap between the lens group and stray light ...
Muze's user avatar
  • 1
0 votes
1 answer
221 views

Can a camera be a mile long?

Could parts of a camera be spaced out over a distance rather then together to work in a way a normal camera cannot? What characteristics would this camera have over a normal camera? In the picture ...
Muze's user avatar
  • 1
0 votes
2 answers
386 views

Determine the effective aperture size by f-stop/sensor size/focal length/Size of CoC [duplicate]

Is it possible to calculate the effective aperture size by the parameters below? f-stop sensor size focal length of lens size of circle of confusion If yes, what is the equation? If no, what are ...
Alvin's user avatar
  • 3
1 vote
1 answer
167 views

Is there an online lens diffraction and maximum sharpness table?

I simply want to see an table that lists the lens diffraction limit of each camera. I have came across this well done answer with animated PNG and I realized there i also the perfect sharpness ...
Delta Oscar Uniform's user avatar
2 votes
1 answer
721 views

What should I do when my D3400 aperture is stuck no matter what lens I use?

I have a D3400 and recently I haven't been able to change the aperture on any of my lenses in manual mode. I have lenses with aperture rings and if I set the aperture to anything below the largest ...
Elvis Ma's user avatar
0 votes
1 answer
72 views

Question on f-number and exposure [duplicate]

Is there any mathematical proof to show that the exposure in a camera is independent of the focal length used, if the f-number (ratio of focal length to lens diameter) remains constant?
LumosMaxima's user avatar
1 vote
2 answers
718 views

Relationship between f-number and amount of light being let into the lens system [duplicate]

Why does smaller f-number imply greater aperture diameter and consequently, greater amount of light entering the lens of a camera? As evidenced from my study across a number of resources, an absolute ...
LumosMaxima's user avatar
8 votes
6 answers
2k views

Does a lens with a bigger max. aperture focus faster than a lens with a smaller max. aperture?

The assertion by a well known photographer is that the Nikon 400mm f/2.8 set to an aperture of f/5.6 will let in 4 times the light compared to a Nikon 500mm f/5.6 lens set to f/5.6, keeping the ...
Michael Davis's user avatar

15 30 50 per page
1
4 5
6
7 8
42