Posted: Fri Jul 30, 2010 5:45 pm Post subject: |
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luisalegria wrote:
Interesting. Though there is a great deal of external similarity these have different internals. I have heard of this difference, but I have not seen it.
There is a very great deal of similarity even in minor details among Yashica Mamiya and Ricoh lenses of the 1960's-early 1970's. So there must have been a common source or sources for many of them. No doubt there were multiple sources.
Hi PBfacts,
It does seem to be a complicated subject, made more complicated by the many changes over time. Perhaps its best to look at a fixed period to get a grasp of these.
Taking the year 1968, it seems to me that the following were the origins of the Mamiya and Yashica product lines of taht year -
Mamiya - for 500TL and 1000TL -
400mm - Tokina preset
28,35,135,200,300,90-230 zoom - Early Tokina Auto series in fixed M42 mounts, the same as those sold in T4 mounts in Soligor and Vivitar brands.
60mm macro - Tomioka without a doubt.
55/1.4 - probably Tomioka, or the base unit is Tomioka design made by whoever made them for Yashica and Ricoh.
50/1.4, 50/1.8, 50/2, 50/2.8, 55/1.8 - Tomioka ? Someone else ?
Some of these may be from a slightly later period, from when the DTL series was released.
Yashica - for the TL or TL Super (not electro) is more interesting than Mamiya -
600mm, 800mm - Kawakami/Kawanon
Yashinon-R presets 35,135,200,300,400 - Tokina preset series
Yashinon-DX 50mm's - Yashica (Tomioka?)
Yashinon-R preset 90-190 zoom - no idea
Yashinon-R preset 75-230 zoom - early Sigma ?
Yashinon-DX 35,100(rare),135,200, 80-160(rare) (sold at the same time as the presets) - Yashica (Tomioka?) _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |