View Single Post
Old 31-10-2013, 07:38 AM
philiphart's Avatar
philiphart (Phil Hart)
Registered User

philiphart is offline
Join Date: Jan 2007
Location: Melbourne
Posts: 1,060
If you're trying to take even moderately high res shots of the Moon or anything else at focal lengths greater than 500mm (perhaps even less) with exposures in the range 1/250 sec to ~2 secs then Mirror Lockup will for sure reduce vibration which will affect your image.

For very fast exposures (eg 1/1000) then the vibration is frozen by the shutter speed and for very long exposures it becomes irrelevant unless your mounting is poor and vibration bad.
Reply With Quote