T.Y.O.W.
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The acronym T.Y.O.W. corresponds to a Japanese lens maker based in Tokyo, whose full name is currently unknown. It made Taiyo-Anastigmat barrel lenses for large format cameras. These are usually marked T.Y.O.W. TOKYO TAIYO–Anastigmat.
List of known Taiyo-Anastigmat lenses:
- 18cm f/4.5 (reported only)
- 21cm f/4.5
- 21cm f/6.3
- 210/6.8 (reported only)
Links
In Japanese:
- Large-format Japanese camera reportedly having a Taiyo-Anastigmat 21cm f/4.5, at tinyslope.com
In Russian: