Originally Posted by
AJ Edmondson
You are correct... the lever does nothing. I seem to recall that years ago there was some function associated with certain models for this but I cannot recall now what it was. As for the slop in the rail, there are three "levers" (two on the left side and one on the right) which lock the rails. Swinging them to the outboard position locks them, turning them parallel to the rails frees them. The lever adjacent to the focus knob on the right side locks the knob. As for the "pinch mechanism" - it is normal that only one side moves significantly and every one of them that I have ever handled was "stiff." (The spring is a pretty hefty spring.)
Joel
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