Linked Questions
21 questions linked to/from Should higher ISOs really be preferred (all other things being equal)?
-1
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6
answers
840
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When to use high iso and a short shutter time and vice versa? [duplicate]
In what situations you can use a high iso value and a short shutter time, or use a low iso value and a long shutter time? What will be the difference between two pictures of exactly the same scene, ...
0
votes
5
answers
412
views
Higher ISO Camera V.S Brighter Lighting [duplicate]
Whenever I take photos in bad lighting I always wonder if I should use a higher ISO camera or instead use brighter lighting. Please no opinions- just comparisons!
- 1
1
vote
1
answer
253
views
Why is same image exposed at 100 ISO noisier than 3200 ISO? [duplicate]
I used to believe that ISO adds noise as a drawback to increasing exposure, but after researching the topic I arrived at the conclusion that it is a misconception. By amplifying the existing signal ...
- 165
60
votes
8
answers
45k
views
What does "expanded ISO" mean?
The ISO specification for the Canon EOS 7D reads as follows:
High ISO
For handheld shooting in low light, the EOS 7D offers ISO
speeds of up to 6400. Expandable to
ISO 12800, for low light ...
- 2,404
74
votes
7
answers
24k
views
How is ISO implemented in digital cameras?
If I change the ISO settings on my camera, obviously the gain of the system is increased, amplifying the signal from the sensor. What's not clear to me is where the amplification takes place. I see ...
- 12.4k
43
votes
7
answers
22k
views
What are the advantages and disadvantages of using auto ISO on a DSLR?
What are the advantages and disadvantages of using auto ISO on a DSLR?
Using manual ISO obviously gives you more control, but auto ISO may mean that you get "the shot" under quickly changing ...
- 1,715
24
votes
5
answers
27k
views
What is meant by the "native ISO" when talking about DSLRs?
The new Nikon D7000 is out, and a lot of previews has touted the "native iso" of D7000 to be 100.
What does this actually mean? I'm assuming it means it performs at its best at iso 100, which means ...
- 1,919
10
votes
6
answers
6k
views
Why would using higher ISO and faster shutter speed yield more noise than using lower ISO and slower shutter speed?
I'm trying to see how this answer correlates with practice. That answer basically says I need to let enough light into the camera and then use the highest ISO value and I'll get the lowest noise then.
...
- 1,059
12
votes
11
answers
3k
views
In situations where you aren't compelled to pick high ISO (low light/needing a high shutter speed), is there ever a reason to NOT prefer low ISO?
Given the same amount of exposure, sometimes you may prefer smaller or bigger aperture because you may want high or low depth of field.
Similarly, sometimes you may prefer slow or fast shutter speed, ...
- 790
12
votes
3
answers
6k
views
How can I reduce noise at ISO 100 in photos taken in the twilight?
I shoot with a Canon EOS Rebel T5 and sometimes see noise even when shooting at ISO 100. Is this just because there is not enough light in the dark portions of the picture (seen below)? Is this a ...
- 309
10
votes
3
answers
4k
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Is Poisson Noise ("Shot Noise") a significant source of noise for typical photography?
In this answer, @jrista states that even a camera with a perfect, noiseless sensor would still have noise due to "Poisson noise" aka "Photon Shot Noise" - noise caused by the random variations of ...
8
votes
5
answers
1k
views
Is it technologically possible for a sensor to run two ISO's at once?
This question (Why don't digital cameras have better dynamic ranges?) combined with a typical sunset photo got me thinking...
Exposure differences between sky and ground in a sunset shot are ...
- 20.5k
2
votes
2
answers
1k
views
Which ISO should I use for the cleanest image? [duplicate]
Assume the case of a Canon 6D Mark II. Its lowest ISO is regulary 100. If expanded, I can set it to L, which is ISO 50.
Until now, I was always under the ...
- 881
2
votes
2
answers
547
views
What is the significance of a camera's ISO Invariant point?
My understanding is that many cameras have ISO settings which are beyond the "true" ISO capabilities of the sensor, and that to achieve higher values, the camera itself performs "back-end digital ...
2
votes
3
answers
409
views
What ISO to minimise noise for long exposures with a tripod mounted DLSR?
I often find myself taking still pictures of some gizmo using a tripod mounted DLSR. One decision that always vexes me is what ISO to set my camera to and so minimise sensor noise. The important ...
- 1,012
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