Gary Reese wrote:
>
> Steve G. writes:
>
> > The main reason the 21mm is less is that the iris does not
> >work at all. No matter what aperture used, nothing happens when you
> >press the
> >stop down button or flick the lever on the back of the lens. When I
> >mentioned
>
> Think of slow diaphragm blades from liquified grease as a 1st degree
> problem. A more advanced and related 2nd degree stage is when they seize
> up totally.
>
It did not feel seized. The depth of field button pressed in and popped back
out normally. It felt more like the diaphragm blades were disconnected or just
plain missing. However, not knowing what really goes on inside those lenses,
is it possible for the depth of field button or stop down lever to be pressed
and the diaphragm blades not move without bending something?
Steve
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