Quote Originally Posted by wilper View Post
How about Pentax ME?

No manual shutter speed selection, but it does aperture priority like you requested.
It uses ordinary LR44 batteries. Uses Pentax K-mount lenses.
Or better, the ME Super instead. Manual shutter speeds 4 seconds to 1/2000, 1/125 flash sync, ASA 12 to 1600.

Inexpensive, easy to find.