Quote Originally Posted by cliveh View Post
For the meter prism on my Hasselblad, I set to film speed and maximum lens aperture. Itís that simple.
I think he means to calibrate a meter that is not metering correctly even with the correct ISO and shutter/fstop settings.
This involves using the variable resistors that are meant for proper calibration. You can even use the batteries of you choice (no weird conversions necessary) given that the built in resistors give you enough playing space (4-50kohms).