Paul Howell
Subscriber
There seems to be a couple of versions, 1st is a manual wind, zone focus, 28mm 3.9 with fixed 1/250th shutter, then the AF version, with 28mm 3.5, 5 element in 4 groups. not sure if the AF version has the same single speed shutter, or manual or auto advance, last a short zoom version which seems to have power winder. Not a lot of info that I've been able to find.