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    Topcon (Tokyo kogaku) Binoculars known? (Vintage)

    The Topcon DM is well made and Nikon quality but the Exacta bayonet was not a good choice as it is too small a mount. I have this and also the 300mm f/2.8 Topcon, which is a good performer but excessively long. This long lens I used on a Minolta with a Minolta to Exacta adapter. There may be...
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