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by Aditya

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-4
votes
1answer
93 views

Why do my photos appear more in focus when I use a long exposure?

Why does an unfocused lens still give a focused view with a longer exposure? For example, I took an out-of-focus photo with a ¹⁄₁₀th second exposure (at f/7.1), but when I change to 10 seconds (at ...
3
votes
7answers
2k views

Is noise related to shutter speed as well as ISO?

I understand that as I increase ISO, I'll increase the amount of noise in the resulting image. With a constant aperture I can decrease ISO and slow the shutter speed (assume a non-moving subject, ...
9
votes
1answer
1k views

How does shutter work when shooting videos?

I am a little confused about the concept of shutter speed in video shooting mode. I assume that the "shutter speed" means how fast the shutter would open and close. When this happens, I would hear a ...
5
votes
4answers
5k views

How can I set an exposure time over 30 seconds with a DSLR?

Most DSLRs have an exposure time limit of 30 seconds. Now I'm asking myself how is it possible to create images about over 1 hour or longer, like these two: ...
2
votes
3answers
1k views

How can I see both aperture and shutter speed in Av mode on my Canon 550D?

I used to be able to see both aperture f-number and shutter speed, and change both values on Av mode on my Canon 550 DSLR. Now, I can only see the aperture f-number and not the shutter speed on the ...
17
votes
4answers
7k views

How can I make good fountain/waterfall photos?

I have a Canon Digital EOS Rebel XT camera, and I wonder how you could take photos of moving water like rivers, waterfalls and fountains...