The visual clarity of an image through an optical system, or the process of affecting it.

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4
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2answers
217 views

How did cameramen manually focus in the film days?

In the days before LCDs and digital cameras, manually focusing an interchangeable lens still camera wasn't a whole lot different than it is today. In most designs, you had a mirror that gave the ...
1
vote
3answers
86 views

How to focus when recording video using a DSLR?

I'm looking for advice on how to adjust focus effectively when using a DSLR to record video. I find it difficult to judge focus on the small LCD screen on the back of the camera when focusing ...
3
votes
1answer
112 views

Magic Lantern follow focus

Using Magic Lantern on a 600D. With Follow Focus and Rack Focus, the camera always misses the focus point I set. Sometimes it's just one or two movements too far but it's always too many. And if you ...
1
vote
1answer
119 views

How to disable continuos autofocus during video shooting with Canon SX230 HS?

I have a Canon SX230 HS camera and want to record a movie from a train driver's perspective on a model railway. Everything is working fine, except that the camera refocuses continuously during the ...