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Why do cameras still have shutters?


martinis

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I've given this question quite a lot of thought over the last few years and still cannot understand exactly why a modern digital camera still needs a focal plane shutter except perhaps to keep the dust out.

As the image is captured on an electronic sensor surely the exposure can simply be made by switching the sensor to "record" for the required time ?

Many years ago I was also certain that somebody would introduce an LCD shutter that darkened or cleared to make an exposure but that never got beyond the research stage I believe.

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The universe is conspiring to piss you off.

 

Really. The technology exists but you can't have it.

.

(See Red cameras for their take on using video to capture high quality still from video. There is something unsaid there. Can you find it?)

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If you so a search for threads about the R solution, you should find one started my me. The first posting is my summary of a briefing given to the LHSA by Leica a couple of years ago. The need for shutters on future cameras was discussed during that event.

 

Best regards,

 

Doug

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There is nothing more frustrating than saying you know the answer and not giving a précis. It's as bad as the people who post a link to some presumably fascinating topic and basically say 'read this' without giving a clue as to what you have to endure.

 

Steve

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There is nothing more frustrating than saying you know the answer and not giving a précis. It's as bad as the people who post a link to some presumably fascinating topic and basically say 'read this' without giving a clue as to what you have to endure.

 

Steve

 

No, it's much more frustrating when nobody replies at all, and you are left with no information.

 

Not being a young as as I used to be, I'm not willing to trust my memory of what was said at the briefing. So it seemed sensible to refer the original poster to my earlier message on this topic.

 

Were I a gentleman of leisure, I could have taken the time to search for my own posting, but in practice I was working to an urgent deadline. So I took a few minutes to point anyone who was interested to a possible answer.

 

Best regards,

 

Doug

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Were I a gentleman of leisure, I could have taken the time to search for my own posting, but in practice I was working to an urgent deadline.

 

Please accept my apologies, I see what you mean. I on the other hand have got to stop being lazy and read through that thread. There are 'only' 505 postings in reply but I imagine everything must be completely clear by the end or it wouldn't be worth you robbing a chunk out of my finite life?

 

Steve :rolleyes: or do I mean :D ?

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