Shel,
it is metering combined with some mathmatics. To truly meter the light the lens would have to be stopped down to the aperture you want to take the frame with. Since this is cumbersome (try using a K lens at the *istD) it is metered with open lens and the difference is calculated somehow.
If the data about how the lenses stopping down influences light metering is somehow incorrect there will be a wrong result from the calculation and the pictures would get too dark or over exposed.
Sam
----- Original Message ----- From: "Shel Belinkoff" <[EMAIL PROTECTED]>
Hi,
I don't get it. How can a lens make a photograph too dark or cause over exposure problems? Exposure is a function of the metering., is it not?
Shel
[Original Message] From: Sam Jost <[EMAIL PROTECTED]>
Strange, I remember finding pictures from the 16-45 rather dark, and in a german user forum there had been lots of lengthy discussions and pictures about the 16-45 making too dark pictures.
----- Original Message ----- From: "Jens Bladt" <[EMAIL PROTECTED]>
> Funny how thers overxposure with the 16-45mm. In fact it might be a > wide
> angle problem. I often get overexposed images with my A2.8/20mm - onfilm
