 Joseph S. Oliver |
lock up the mirror? what does it mean to lockup the mirror when exposing on a tri-pod at long exposures and do I have this feature on my canon Ae-1. Is this something I should practice?
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Stephanie M. Stevens |
I don't know if your camera has this feature, but its purpose is to lock the mirror up before the exposure starts, so that the vibration caused by the moving mirror doesn't cause blur in long exposures.
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Pete H |
Many of the newer cameras do not have this feature. All is not lost. If the exposure is rather long, say 10+ secs..you can cover the lens with a piece of black paper..Squeeze off the shot and move the paper away from the lens. This gives the vibration time to dampen. Pete
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Bob Cammarata |
You can use the timer to flip up your mirror. When you activate the timer and press the shutter button, the mirror will flip up out of the way. (You will see the viewfinder go dark.) When the timer finishes its cycle, the shutter will open and close at its set interval to expose the film. What Pete described is known as "masking" the lens. This technique is commonly used with a "bulb" setting and for multi-second exposure times to eliminate vibrations when tripping and releasing the shutter.
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Andy |
Hi Joseph, your AE-1 does not have MLU. See Bob's response on this thread to see how you may avoid movement caused by the mirror when exposing: http://www.betterphoto.com/forms/QnAdetail.php?threadID=28886 Hope this helps.
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