Forgotten in its old age

by Aditya

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27
votes
9answers
1k views

Should higher ISOs really be preferred (all other things being equal)?

My understanding of the ISO setting on digital cameras is that, unlike film-cameras, changing the ISO does not evoke any physical change in the camera. Rather, it simply tells the camera to multiply ...
12
votes
5answers
1k views

Do ISO values for Film and DSLR cameras have 1 to 1 correspondence?

For example, if we have a film with ISO/ASA speed of 100, is it equivalent to setting ISO = 100 on DSLRs?
6
votes
2answers
663 views

How did film photographers overcome constant ISO/ASA values in low light situations?

Today in Digital SLR era, when I find myself in low light situation in a place that I can't use my tripod or I don't have it, and still don't want to get blurry images, I use the widest aperture which ...
10
votes
4answers
535 views

How does flexible ISO make shooting digital different from film?

I was thinking at the differences between SLR and DLSR (in Manual mode). In both cases you can change aperture and shutter speed as it suits you. But with SLR you are stuck with the ISO of the film ...
4
votes
3answers
553 views

What is preventing sensor ISOs from going lower than 100? [duplicate]

Possible Duplicate: Why can't the ISO level on most digital cameras be set below 80 So, take your typical DSLR sensor. It probably tops out at anywhere between 1600 - 6400 ISO. The ...
13
votes
6answers
5k views

Is ISO 200 still considered to be a bad choice, on digital cameras?

In times of film photography there was a rule to either use ISO 100 film (or even great Velvia 50) which usually had considerably less grain noise than ISO 400 film. So 100 for outside or well lit ...
87
votes
4answers
5k views

What is “ISO” on a digital camera?

What is "ISO" in general, and how is the scale defined? How does the ISO scale for film speed differ from ISO sensitivity as used in digital cameras? Is lower ISO always better?
21
votes
5answers
7k views

What is the difference between digital high ISO noise and film grain?

What is the difference between digital high ISO noise and film grain? Why does one "eat detail" and the other does not?
14
votes
6answers
3k views

What megapixel value is equivalent to which ISO film?

Is there some kind of equivalency table or formula that expresses what kind of pixels you need in a digital camera to have roughly the same quality as a particular ISO graded film? What other ...