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Kamerastore Digital Database

Carl Zeiss 21mm f2.8 Biogon T* - Lens

Carl Zeiss 21mm f2.8 Biogon T* - Lens

Autofocus wide-angle lens made for Contax G 35mm cameras by Carl Zeiss. This lens is nearly symmetrical and offers low-distortion ultrawide performance. It also sticks quite deep into the camera body, allowing the lens to be compact compared to 21mm lenses for SLRs. Metal body available in black and champagne.

  • Carl Zeiss 21mm f2.8 Biogon T* (9 elements, 7 groups)
  • Minimum focus distance: 0.5m
  • Aperture blades: 7
  • Size: 35 x 57 mm
  • Weight: 200g
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Contax G

The Contax G1 and G2 were produced by Yashica/Contax parent company Kyocera in the 1990s. These cameras use a hybrid rangefinder autofocus system with two windows that triangulate the focus distance passively. It's an automatic version of the rangefinder system found in other 35mm cameras.

Upon release, the G1 was criticized for the speed and accuracy of this system. The G2 fixed many of these issues by adding an active AF system on top of the passive one. The passive system controls general focus and the active system fine tunes things before the shutter is pressed.

One of the defining features of the G system are the lenses. The seven G lenses are widely regarded as some of the best lenses ever made for film or digital cameras. From the ultra-wide 16mm Hologon to the world’s only zoom lens for rangefinder cameras, there are many interesting options in the G mount.

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Carl Zeiss 21mm f2.8 Biogon T* - Lens Availability & Price History
Date Sold SKU Quality Control Price Image
Available E19757 €699,00 Carl Zeiss 21mm f2.8 Biogon T* + GF-21mm Optical Viewfinder
18 Sep 2023 T51185 € 472,99 Carl Zeiss 21mm f2.8 Biogon T* - Lens Image
10 Sep 2023 T44208 € 425,00 Carl Zeiss 21mm f2.8 Biogon T* - Lens Image
20 Mar 2023 T38995 € 499,00 Carl Zeiss 21mm f2.8 Biogon T* - Lens Image
09 Jun 2022 A76738 € 599,00 Carl Zeiss 21mm f2.8 Biogon T* - Lens Image