Quote:
Originally Posted by wlaidlaw
L39UK,
Difficult to be precise from your photo #1 but the TT&H f2 looks similar to what I recall my TT&H 2"/f2 did, which I had on my Reid II, when I was a teenager (looooong time ago). I am afraid I sold it in about 1962 to buy a Mamiya SLR, which seemed much sexier at the time than the Reid. The CZ Jena Biotar looks fantastic. With German Hyperinflation in 1931, it must have cost about a trillion Reichsmarks.
Wilson
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Hello Wilson,
The 2" f/2.0 National Optical Co.Anastigmat mount is very similar to the T,T&H 2" f/2.0 Anastigmat and both are mounted in focussing mounts and barrels produced by Cook and Perkins.I believe that the 2" F/2.0 National Optical Co. Anastigmat was based on the "Speed Panchro" (series two) design patented by Horace.W.Lee in early 1930's and this patent and others are engraved on the barrel of the 2" f/2.0 National Optical Anastigmat(see photo's below).This lens also has the last 3 digits of the lens serial number engraved on the barrel(see photo's below) and this may be due to the lens cells being matched to individual barrels.It seems that the 2" f2.0 National Optical Anastigmat was made in fewer numbers than the Reid T,T,&H lens and from current research the 2" f2.0 National Optical Anastigmat was thought to be only produced in 1 batch of 250 lenses (Serial No's 354xxx) the highest number so far recorded is no.354249.
The 2" f/2.0 [ T,T&H Anastigmat] and the "Amotal", as used on the ill-fated Bell & Howell "Foton" camera, were also based on the "Speed Panchro" design.The National Optical Co. was a subsiduary of Taylor,Taylor & Hobson and set up by the parent company to deal with the increased workload during the Second World War.
Regards,
William