crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

There is a ring around the bodies lens mount that intersects with the lenses aperture control ring. Does it move freely? If not it may need cleaning.

The other possibility is the photo-diode which measures the light entering the lens has failed.

crwdns2915684:0crwdne2915684:0:

open