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2010-11-09 20:36 Paul1513 765×990× (6633 bytes) By Paul Chin (paul1513); self created; a block diagram of the Tessar, the standard high quality photographic camera lens of the twentieth century.
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{{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|A block diagram of the Tessar, the standard high quality photographic camera lens of the twentieth cent