Questions tagged [optical-viewfinder]

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26
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5answers
6k views

Why is the depth-of-field preview in the optical viewfinder of my Canon 500D inaccurate?

I have noticed that in my Canon 500D, the depth-of-field preview in the optical viewfinder is inaccurate with large aperture settings. If I press the DoF preview button, there is very little ...
46
votes
7answers
9k views

How did photography work before auto-focus was invented?

Having just spent some time reading questions about auto-focus, I came up with a question of my own: How did cameras even work before auto-focus technology was invented? Presumably everybody used ...
25
votes
9answers
14k views

What are the advantages of using the optical viewfinder over live preview to take photos on a DSLR?

Forgive this novice question, I am basically a complete newbie to photography. Really, all I've ever used for most my of short life have been point-and-shoots; I've only recently started to pick up ...