Rate this post by selecting a number. 1 is the worst and 5 is the best.

Author Message   David_nebenzahl Tinkerer Username: David_nebenzahl Post Number: 74 Registered: 12-2009 Rating: N/A Votes: 0 Posted on Thursday, January 21, 2010 - 08:58 am:    Sorry, can't help you. Hopefully someone who can will be along shortly. By the way, in English that's called the "aperture ring".