The crux of this post is - does anyone know where I can obtain schematics of the electronics on the Contax 645 lenses? Ideally I would like to replicate what the JAS adpter can do - trigger aperture and auto-focus (I have the aptitude, means, and skills to construct such an adapter). The adapter comes with the latest firmware. Be noted: USB cable is NOT included anymore. I would venture out to say that I prefer Contax 645 lens in many instances compared to native Fuji GF lenses.The big negatives of the Contax 645 35mm f3.5 are 1) very large and heavy and 2) the AF adaptor is expensive. Unfortunately, it appears that the JAS adapter is no longer available. It will be shipped in 3 working days afer your cleared payment received. The lens performs wonderfully, with excellent color, micro contrast, and resolving power in a classic fashion of Zeiss MF lens. The next best thing is to find an adapter, such as the JAS, to attach the lenses to my full frame Nikon.

For my heavier lenses that are simply not handheld, I tend to use my Gitzo tripod with a RTS Studioball head with Acra plates. First, the paint is inexplicably peeling from the top of the finder, but ironically is flat black under the flat black paint, so you can. Body is mechanically perfect, but has one small cosmetic defect. The f2.0 80mm kit lens is perfect, w/ 72m skylight filter. Reasoning for the Contax 645 was a entry into the world of MF AF. Contax 645 Medium Format film camera with 80mm, 35mm and 140mm lenses and TTL flasg. I regret selling my Contax 645 for a paltry sum many years ago (since when prices are now approaching what they were when new) and a second-hand Leica S and adapter is also out of my price range. In conjunction with my Hasselblad 2000/200 series and 500 series system, I use the optics from that system courtesy of the Contax MAM-1 adapter mount. Sadly I can't afford a MF camera to attach to them. Okay, I'm not sure if this post should be in the medium format section as will be evidenced below - one foot in MF and one foot in Nikon 35mm.Īt present, I have a bunch of Contax 645 lenses.

Contax 645 35mm bh