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vnmunhoz
Joined: 19 Feb 2010
Posts: 7
Location: vancouver, bc
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 Posted: Thu Mar 04, 2010 11:15 pm Post subject: quick silly question on shutters |
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Hi there, I've been looking at large format lenses and I did a little reading on different Copal shutters such as 0, 1, and 3, but I've been seeing a lot of "Copal Bulb". is that the same as Copal 0? or is it another type of shutter?
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glennfromwy
Joined: 29 Nov 2001
Posts: 903
Location: S.W. Wyoming
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| Posted: Fri Mar 05, 2010 3:26 am Post subject: |
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"Bulb" simply means the shutter has no "T" or time setting. To hold this type open for focusing or long exposures you need a locking cable release. It has nothing to do with shutter size.
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Glenn
"Wyoming - Where everybody is somebody else's weirdo" |
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Les
Joined: 09 May 2001
Posts: 2682
Location: Detroit, MI
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| Posted: Fri Mar 05, 2010 3:38 pm Post subject: |
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These are probably self cocking, which means the highest shutter speed will be fairly low: 1/100 to 1/150 rather than a typical 1/400
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