Half stop in only some cases should be quite trivial. What the correct exposure is, in some cases, is entirely subjective anyway.
In "center-weighted" meters, there are differences in the area and shape the meter covers as "center" and the rate of declines of the intensity. So two cameras can give different readings. This is entirely reasonable. Even with uniform lighting, such as the center area of a light box (you put the camera lens down directly on the light box), the meters can still give different readings, because their "center" areas are different. Camera makers sometimes publish an "altitude" map for their meters. Sometimes you see descriptions of "60/40" or "75/25". This can be different even from the same camera manufacterer. Regards, Tonghang On Fri, 14 Dec 2001, swades.das wrote: > I am proud owner of a Pentax K1000 and a KX with Pentax-A 1.4/50 and Pentax-M > 1.7 respectively. Simply overwhelmed with their performances. I observed that > for same lighting conditions, K1000 shows half to one stop underexposure > compared to KX when the film speed and time are set same on both of them. Is > this natural or my one of the cameras is not properly calibrated? I cold not - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .