I just purchased a Contax IIIa with a Sonnar 1:5 lens at a very good price from an Internet auction site which shall remain nameless. lol The camera's comsmetics are excellent, but the shutter is hung up so I took it to a local camera shop to have it serviced. Doesn't seem to be a big deal to them The lens is clear as a bell even when examined with a flashlight - no haze or signs of fogging. Has anyone out there had experience shooting with this lens before? If so, what have been your experiences shooting wide open, close up, high contrast, infinity, etc.? Thanks in advance.