Originally posted by edom31 I noted this with my lens - it really allows the use of the preset (open to focus, then close to shoot if needed) - the worst preset I've found to use is the Helios 44-2. This Soligor's is the best, most userfriendly I've encounter; better than the takumar (talking about the preset function).
When I got it, I really thought it was a Tokina... but now I do not know. Apparently Tokinas are SN 17xxx (mine is SN 16xxx). I further read that it might be a Sun Optic lens (they did the early Soligors, again apparently).
I believe it is a Tokina.
All those with the serial starting with 1, a least those I have seen, were Tokina's.
Yours is a relatively early model, but not very early. The oldest ones have the Soligor brand name inscribed in a curved, characteristic font, and usually have the diaphragm and preset rings at the front.
I think your lens is from the "golden age" of Soligor. In general, newer lenses were not as good.
I have many Soligor lenses, unfortunately none of the fast, super expensive ones.
The most valuable ones are a trio of "P" lenses (all made by Tokina to the highest standards of the time), a nice Tokina-made 24mm in PKA mount, and a 35mm made by Kyoei (Acall) that happens to be extremely permeable to wavelengths outside visible light.
I also have a number of long teles made by Kino and Komine.
I have contributed with my personal findings to the thread on mflenses.com that reports on Soligor serials.
Usually the first number tells about the maker, the second about the decade, and third about the year.
Some lenses have the same first serial but are made by a different manufacturer. The length of the serial is different, though.