Quote Originally Posted by gnashings
I don't recall anything in SLR lenses taht dos a 1/4 turn, like the QL for example.
They do exist. Examples in my camera bag include a Zenitar 16mm and a Mir-47K 20mm. A Tamron 28-70mm takes just barely more than 1/4 turn, and a Tamron 24mm is a bit more than that, but I'd guess a bit less than 1/3 of a turn.