In article <50q6q8$m18@nntp4.u.washington.edu>, wchang@homer.u.washington.edu says...

> I was browsing the Nikon F3 Faq page on the WWW. In the
> specifications for the F3, it mentioned a button that can lock the
> exposure memory.
> I would like to know how to use the memory features of this camera.

Ummm, while in Auto mode, push the button when you have arrived at the exposure you want to hold, and release it after releasing the shutter....
(It is the button to the left of the lens mount, below the DOF button.)
It does nothing in manual metering mode.
Hope This Helps