Yep, when you mount the lens and the viewfinder is dark, then your aperture lever isn't aligning with the body...probably bent. Regards, Bob S.
On Fri, Apr 27, 2012 at 8:12 PM, John Francis <[email protected]> wrote: > On Fri, Apr 27, 2012 at 04:34:57PM -0600, Tom C wrote: >> >> Yeah that was stupid of me. It's the tank-artillery-shell-bodied >> FA/100 2.8 Macro. >> >> It seems to be related to the aperture lever/control on the lens. It >> appears through the viewfinder that it's totally stopped down in 'A' >> mode, even when the camera body says f/2.8, f/4, etc. > > That's a problem right there. > > The lens should only be stopped down during exposure (or when the > DOF preview is in effect). If the viewfinder is dark at other times > something (almost certainly the lens) is misbehaving. > > Check to make sure the mechanical coupling in the lens moves freely, > springs back quickly, and isn't bent so that it would come into contact > with anything on the body except for the aperture stopdown linkage. > > Check that the linkage on the body isn't bent, either - it's possible > that it might be getting caught up on some part of the lens. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
