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Focus is the mechanism of converging light from a point light source onto an imaging plane by a lens.
11
votes
Why would I want to select an autofocus point?
As it is, with the 9 AF points on the 5D2, It's quite challenging to even get a shot in focus.
Take, for example, a Diving Pelican. … Obn the other hand, when you get a shot in focus, it's worth it.
One second later: …
2
votes
Is there a webcam that can focus to infinity, for time-lapse landscapes?
I have a Microsoft LifeCam Studio, and it can focus to infinity (it's AF).
I don't know how easy it would be to remove the IR filter, though. It's basically an aluminium tube. …
4
votes
Why is my Canon Powershot A1100 focusing only on the bottom part of scenes?
The road in in focus to a distance well past the church steeple, so the steeple should be in focus, but it is not. This may very well be a hardware problem. …