Re: [OM] OT Shutter (language question)

[Chuck Norcutt]

That's goodness since it prevents firing the shutter with the lens wide 
open.  Unfortunately, it doesn't do much of anything for reducing 
vibration.  What were they thinking?

Chuck Norcutt

Moose wrote:

> 
> The mirror lockup doesn't use the same mechanism that raises the mirror 
> and closes down the aperture during normal operation. It simply raises 
> the mirror separately.  The activation mechanism still goes up and down 
> under considerable spring pressure when its release is pressed.  You can 
> see easily enough yourself. Without a lens, hold down the aperture stop 
> down lever on the side of the mirror box and press the release. The 
> shutter won't activate until you let that lever travel up.
-- 
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