Category Archives: Zeiss C/Y mount

Review: Contax Zeiss Vario-Sonnar T* 4.5-5.6/100-300

Contax Vario-Sonnar 4.5-5.6/100-300 mounted on my Sony A7III via Novoflex NEX/CONT* adapter and with Novoflex ASTAT-NEX* tripod collar.

The Contax Zeiss 4.5-5.6/100-300 T* MM is a telephoto lens that hit the market in the mid 1990’s. It was also one of the last lenses that were designed for the Contax/Yashica mount. It is rare because it was very expensive in a time when autofocus telephoto lenses were already available. Lets have a closer look at this exotic legend.

Sample Images

Sony A7III | Contax 4.5-5.6/100-300 | full size
Sony A7III | Contax 4.5-5.6/100-300 | full size
Sony A7III | Contax 4.5-5.6/100-300 | full size
Sony A7III | Contax 4.5-5.6/100-300 | full size

Continue reading Review: Contax Zeiss Vario-Sonnar T* 4.5-5.6/100-300

REVIEW: Carl ZEISS 28mm f/2.8 Biogon T* + 1.5m pcx filter

The Contax G 28mm Biogon was considered one of the best 28mm available on film, but suffers serious issues on digital due to sensor cover glass. Can a simple filter make the lens a competitive performer on Sony cameras? Find out below.

I have shot this lens for years on the Sony A7 and more recently with a PCX filter and then on a Kolari UT modded A7. Unless otherwise noted, all of the tests in this review were performed on a Sony A7RII with a reversed 1.5m PCX filter on the lens (Thanks again to Nehemiah for lending me the A7RII). Check captions on sample pictures to see what camera was used. Bonus: The Contax G 28mm Biogon is both Phillip and my favorite lens on aps-c cameras, so I will also add a second installment later reviewing the lens for aps-c provocatively titled How the A6000 + Contax G 28/2.8 is better than an RX1.

Sample Images

Sony A7 | Carl Zeiss Contax G 28mm f/2.8 Biogon | f/2.8
Sony A7 | Carl Zeiss Contax G 28mm f/2.8 Biogon | f/8
Sony A7 | Carl Zeiss Contax G 28mm f/2.8 Biogon | f/11
Sony A7 | Carl Zeiss Contax G 28mm f/2.8 Biogon | f/11

Continue reading REVIEW: Carl ZEISS 28mm f/2.8 Biogon T* + 1.5m pcx filter