El Sid
(Going potty)
28/07/2008 17:15
Re: Sharp lens in the 28-90mm range?

Quote:

but the 100/f4 is all manual and I don't think the aperture will properly adjust (in other words, I can manually set it to 22, but I'm not seeing any difference between f22 and f4) whereas the 50 is an "a" and will adjust DoF nicely.





IIRC, and I'm sure a proper Pentaxer will be along to confirm or deny, but with fully manual lenses yo have to go into the custom menu and find a particular function which is called something like 'Enable Aperture Ring'... When set to the correct value I think this then allows the camera to read the position of the aperture ring when metering and to stop the lens down to the correct aperture on exposure.

HTH



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