Forgotten in its old age

by Aditya

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7
votes
3answers
947 views

how the camera determines correct aperture and ISO in bulb mode?

Consider that the camera is in shutter priority and the exposure time is set to bulb mode. Now the camera doesn't know how long the shutter is going to be open in advance and so how does the camera ...
2
votes
3answers
5k views

What is the relationship of aperture, focal length, and ISO in a SLR?

I was using Nikon digital camera, and recently bought a Canon 550D. I am totally new to SLR. I am not familiar with SLR terms: Aperture, focal length and ISO, and their relation to one another. What ...
4
votes
4answers
713 views

Is higher ISO noise evenly distributed, or does it affect colors differently?

It's obvious that higher ISO affects the photograph by adding noise or grains. But will that grain or noise be distributed equally over all parts of the photograph, or will it specifically affect ...
15
votes
4answers
2k views

What are general rules for ISO settings?

Being a novice in photography and reading about preferable settings of my camera I'm a little bit confused about ISO settings. Sometimes I'm advised to set as little ISO as possible to have higher ...
17
votes
4answers
702 views

What is ISO and how does it affect my photos

What is the ISO setting on my camera? What does it represent? What should I be aware of with regards to ISO when taking photographs