A #1 can be too small for a 210/4.5, which may need an aperture as large as 47 mm. Remember, the #1 opens only to 30 mm. Perhaps your expectations were formed by 210/5.6s, many of which are in #1s.I bought this lens at last years Photographica in London but have just got round to using it. It came in a Copal 3S shutter and I assume it is a Tessar design. It covers 5x7 and is very sharp stopped down at f11 and beyond. I have been able to find out very little (nothing of use) about the manufacturer, when it was made or what/who it was made for. I believe it to be of Chinese origin but that's about all I know. It seems odd that that it should be in such a large shutter. I would expect a Copal 1 at this focal length and I did in fact buy this for its mint condition shutter.
It shows 4 strong reflections in the front cell set and 3 reflections in the rear set, 2 of which are strong and 1 of which is weak. Would you expect this to be the characteristic reflections from a Tessar copy Dan? I associate lenses around this focal length with an f4.5 aperture with Tessars.
You could well be right about this lens doing the rounds of the camera fairs Ian. It came in a light brown box with a metal catch and a red plush interior.It was in extremely nice condition and looked unused. See Pics. I have shown the lens with close ups of the sticker and inscriptions on front and back caps.
It shows 4 strong reflections in the front cell set and 3 reflections in the rear set, 2 of which are strong and 1 of which is weak. Would you expect this to be the characteristic reflections from a Tessar copy Dan? I associate lenses around this focal length with an f4.5 aperture with Tessars.
Looks like a yamasaki congo tessar. Perhaps Japanese and not chinese?
It reads "Great Wall".
You could well be right about this lens doing the rounds of the camera fairs Ian. It came in a light brown box with a metal catch and a red plush interior.It was in extremely nice condition and looked unused. See Pics. I have shown the lens with close ups of the sticker and inscriptions on front and back caps.
It shows 4 strong reflections in the front cell set and 3 reflections in the rear set, 2 of which are strong and 1 of which is weak. Would you expect this to be the characteristic reflections from a Tessar copy Dan? I associate lenses around this focal length with an f4.5 aperture with Tessars.
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