Andrea B. Posted August 29, 2016 Share Posted August 29, 2016 Asahi Opt. Co. 85mm f/4.5 Ultra-Achromatic-Takumar (2)Blades: 6Elements: 3 fluorite, 2 quartz, 5 groupsFFD: 45.46mmFilter: 49mmMount: M42Note: The serial number of this lens has been deleted. For those folks curious about the UAT, this manual focus lens was prototyped in 1966 by Asahi Optical Co. (which became Pentax which became part of Ricoh). It was manufactured between 1973-1977. The UAT has an M42x1 screw mount and requires a 45.46 mm flange focal distance to attain infinity focus. Thus the UAT is easily adapted to short FFD mounts: Pentax, m4/3 (19.25 mm) or Sony E (18 mm). I'm not sure about the Canon EF/EFS mount with its 44 mm FFD, but I'm sure there are adapters out there somewhere for that 1.46 mm gap. The UAT is a no-go on a Nikon (46.5 mm) for infinity focus. Still useable for Nikon close-work though. The UAT on an adapter for use on a Sony aR7. Link to comment
Andrea B. Posted October 10, 2018 Author Share Posted October 10, 2018 Here is a PDF of the UAT Operating Manual. UAT_OpManual.pdf Link to comment
bobfriedman Posted October 11, 2018 Share Posted October 11, 2018 excellent product shots... wish i had one. Link to comment
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now