Alley in Pisa, Italy

by Lars Kotthoff

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13
votes
1answer
740 views

What does the pentaprism/pentamirror do?

In an SLR, the light bouncing off the mirror goes through a pentamirror or pentaprism before being reflected to the viewfinder. However, it seems to me that it would be possible to project an image to ...
12
votes
1answer
920 views

Disadvantages of electronic viewfinders?

What are the disadvantages of electronic viewfinders? such as the ones used in Sony SLT cameras? What is the reason that major camera manufacturers are still using the classic viewfinders while using ...
5
votes
4answers
290 views

Why the need for SLR in digital cameras?

Excuse my ignorance but as far as I know, SLR was invented in order to get the photographer to see (through the viewfinder) exactly what image will fall on to the film. In digital cameras the image ...
14
votes
3answers
1k views

How important is the viewfinder coverage percentage? (Figures like 95%; 100% for Canon 7D?)

I would like to know if the 100% viewfinder number mentioned in many cases to praise the Canon 7D and other similarly-priced SLRs is a really meaningful figure. How does it actually affect the ...
47
votes
4answers
3k views

Why aren't all viewfinders 100%?

We often see that a manufacturer's high-end (D)SLR models offer a "100% viewfinder," which shows the entire exposed frame, and allows precise composition with regard to objects near the edge of the ...
15
votes
4answers
2k views

What's the difference between a rangefinder and SLR?

I've seen rangefinder cameras around and idly wondered what the difference was between them and SLR cameras. Are there any advantages rangefinders offer that cannot be reproduced using an SLR?