Thursday, March 31, 2011

Glass Buildings

Glass Buildings -- NEX-5 & Carl Zeiss Jena Biotar 5.8cm f2.0

I have two working Biotars.  This particular one is small with a red T. Not really sure what it signifies, but it's significantly smaller than the other export version which simply says Aus Jena B 58mm f2.0.  I like the Aus Jena too.  Very sweet bokeh and both are very sharp when stopped down a little.  It just boggles my mind that these 30-40 year old lenses still performs so wonderfully today.


  1. Hi
    The "T" stands for the Zeiss multicoting on most of its West-German and Japanese Lenses. Some of the eastern made lenses also sport the red "T" but if you believe some people are only singlecoated as opposed to their "capitalist" counterparts
    Greetings from Germany

  2. @Tobi: Thanks for the information. Fascinating!

  3. have you been able to use them on a full frame (5d)? I hear about the lens hitting the mirror at infinity .. is this true?