I never took snow images with my mamiya 7. I was wondering how should i meter a general snow scene because of mamiya's 7 spot meter. Shall I meter for the snow and then open up two stops or shall I meter for a darker object in a scene, for example a building or a tree and still open up one stop. I always use the ae mode and then use the exposure compensation if necessary. I will be shooting with the new portra 400 film. Any suggestions will be appreciated. In the mean time I will start bracketing my shots but the snow is melting at a rapid pace so I do not have the time to wait for development if I want correct exposures right away.
If your spot meter in the camera is just reading snow only, then just set the exposure compensation dial on the top of the camera to +2. Simple as that.