Quote Originally Posted by ToddB View Post
Hey guys,

The ASA setting knob bench mark the correct light neededfor correct metering.. correct? the knob has no other function?

ToddB
on my 2.8 E the asa setting wheel tells the light meter what speed of film the camera has in it so when I use the meter it tells me the correct setting for the camera. The meter isn't mechanically linked to the camera, I take the EV number off the meter and set it on the camera.

The needle on the meter isn't changed by changing the asa, but changing the asa shifts the little rings on the meter that tell you what EV to use when you match the needle up with the pointer.