Hi Steve, The FM3a is, for me, about as close to the perfect 35mm body as can be imagined. It is something like a cross between the FE2 and the FM2n Like the FE2, it has the option to shoot aperature auto priority. Like the FM2N, it'll still work at all shutter speeds even with no batteries. It is supperior to both of them (in my opinion) because it has real match-needle light metering (instead of LED's).