Nubster, they don't. Neither do focusing bellows or deglassed teleconverters. I'll give TME the benefit of the doubt.
Recedite, plebes! Gero rem imperialem.
Quote me as saying I was misquoted.
Once you get rid of integrity the rest is a piece of cake.
Here's to our wives and sweethearts - may they never meet.
If you agreed with me we'd both be right.