Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
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The screen on which the image entering a reflex camera is reflected on by a mirror. Multiple designs are generally available.

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23
votes
4answers
4k 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 ...
41
votes
6answers
14k views

Why don't DSLRs come equipped with “classic” focusing screens (split prism, etc)?

I have a hard time manual focusing my Canon EOS 350D. Compared to the few higher spec DSLRs that I played with, and that have a pentaprism, my Rebel's (pentamirror) viewfinder feels crammed and ...
3
votes
4answers
447 views

Is it possible to get a larger screen for live view, for precise manual focus?

I've been doing some test macro shots lately and it's been a pain to focus sharp. The macro lens already minimizes DoF and makes things hard but I've been thinking of an external screen that I can ...
2
votes
1answer
232 views

Why does my Canon 50mm f/1.8 have an interference pattern on the viewfinder?

This is on my 600D. I'm a noob so forgive if it's obvious. There's a clear moire-like interference pattern on the viewfinder on the 50mm which is not as obvious at all on the kit lens. It's especially ...
5
votes
3answers
8k views

Why do the focus points leds in my viewfinder appear shadowed?

The focus points leds (red colored ones), looks shadowed (smudged) in my Canon 550D. Not all points, but the bottom 3 points, when the light glows, looks kind of shadowed. I tried cleaning the both ...
2
votes
1answer
5k views

Which Canon focusing screens fit on the Canon 6D

I'm having trouble finding the available focusing screens for the Canon 6D. Are the canon 6D focusing screen compatible with the 5D Mk II focusing screens? Is there a microprism focusing screen for ...
23
votes
4answers
2k views

Disadvantages of split-prism focusing screens?

I'm considering getting a microprism focusing screen for my Nikon d3000 (specifically, the KatzEye). Hopefully this will help tremendously with manual focusing, but I suspect there must be some ...
10
votes
4answers
419 views

If I have a recent, mid-range DSLR, then why, if ever, would I need to buy another / better focusing screen?

In theory this question applies to other brands beside Canon, but I'm going by the Canon experience here. Namely: Why would I want to change a functional focusing screen with another one? And what ...
10
votes
5answers
6k views

How should I clean my focusing screen?

While on holidays I managed to get hair and dust onto the focusing screen of my 550D. How should I clean this off. I have already tried a normal lens cloth, but that only made it worse.
3
votes
2answers
854 views

Can a new focusing screen affect exposure metering?

After i replaced original focusing screen with a split one, it seems that every picture i take is overexposed now. Can it affect on exposure? Or i damaged something while replacing it? I own Nikon ...