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Old Feb 23, 2013, 3:31 PM   #1
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Default Hello From The Peoples Republic of Minnesota

I am aware that point and shoot digital cameras usually don't have mechanical shutters where as many high end DSLRs have mechanical shutters. My question is how do the high end DSLRs take video? Does the mechanical shutter open and close, for example, 24 times a second? What happens to the mirror during video recording? It would seem if the shutter did open and close 24 times a second you would very quickly exceed the shutter life expectancy.

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ruko

Last edited by ruko; Feb 23, 2013 at 4:11 PM.
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Old Feb 23, 2013, 8:36 PM   #2
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Brilliant question Ruko, but I cannot help you yet, let me get back with you on that as I have a good camera that is supposed to do just that. I just never used or had use of that function yet. I suppose it is just like a point and shoot that has the same function, meaning the shutter stays open, I just can't confirm that...yet
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Old Feb 23, 2013, 8:51 PM   #3
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Here is a start Ruko
Well maybe this one will get to the heart of your question

http://gizmodo.com/5051331/giz-expla...shooting-video

Hope that helps....
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Old Feb 23, 2013, 11:20 PM   #4
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Thanks. It looks like DSLRs most logically work the same as P&S concerning video. Another question I have is about the LCD view screen in DSLRs. Block diagrams of DSLRs obviously show the mirror and the shutter in front of the imaging sensor. Where does the LCD screen get it's picture information since light is not allowed to hit the sensor until the shutter opens? Is there a second sensor supplying the LCD screen?

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