jumanji
12-Apr-2011, 04:29
Hello. I've just purchased a Bausch & Lomb - Zeiss Unar series Ib 6.5x8.5, SN 772151 Pat 1900 (just Unar, not Portrait Unar). The aperture scale is strange. It marks 1.9 2 4 8 16 32 64. I go to google but there is less information. Just a few from wiki:
Probably inspired by the Stigmatic lenses designed by Hugh Aldis for Dallmeyer of London, Rudolph designed a new asymmetrical lens with four thin elements, the Unar Series Ib, with apertures up to f/4.5. Due to its high speed it was used extensively on hand cameras.
Anyone please let me know more about this lens. Thanks for reading.
Probably inspired by the Stigmatic lenses designed by Hugh Aldis for Dallmeyer of London, Rudolph designed a new asymmetrical lens with four thin elements, the Unar Series Ib, with apertures up to f/4.5. Due to its high speed it was used extensively on hand cameras.
Anyone please let me know more about this lens. Thanks for reading.