You are probably beyond the metering range for the camera. That is the problem stop down metering. As you stop down you reduce the amount of light reaching the metering sensors.
Mike Hamilton wrote: > I really don't want to stir up any huge debates here; I would simply > like some help in getting this right. > > I recently came into possession of two Takumar lenses. Both are f/4 > at maximum aperture. I'm really having a hard time with metering; > both seem to meter only at f/4, even if I stop down the lens. > > I'll describe what I am doing: > > 1. Lens (takumar 50mm f/4 macro) is set so that the red "MAN" is > showing (that's manual mode, right?) > 2. Camera has had the option for aperture ring use turned on. > 3. Mode switch is in Manual. > 4. Camera mounted on tripod. > 5. Location is indoors with constant lighting. > > Now here are my results: > (f/4): 1/10 sec > (f/8): 1/5 sec > (f/16): 1/5 sec > (f/22): 1/5 sec > > What's happening here? > > I tried a similar test with the Takumar 200mm f/4 and the meter > reading would not change even when i moved the aperture from 4 to 22. > > Assistance is much appreciated. > > -- Entropy Seminar: The results of a five yeer studee ntu the sekend lw uf thurmodynamiks aand itz inevibl fxt hon shewb rt nslpn raq liot. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
