A premium Carl Zeiss Biogon T* 21mm f/2.8 ultra-wide-angle lens designed for the Contax G-series autofocus rangefinder camera system.
Renowned for its exceptional optical design, sharpness, and wide field of view, the 21mm Biogon is particularly well suited for architecture, landscapes, street photography, and environmental portraits.
This example includes its dedicated Contax GF-21mm optical viewfinder, original packaging, carrying case, and accompanying documentation.
TESTED ON A CONTAX G2 — FULLY FUNCTIONAL
Features & Specifications
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Brand: Carl Zeiss / Contax
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Model: Biogon T* 21mm f/2.8
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Lens Mount: Contax G
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Focal Length: 21mm
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Maximum Aperture: f/2.8
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Minimum Aperture: f/22
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Focus: Camera-controlled autofocus
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Lens Coating: Carl Zeiss T* multicoating
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Serial Number: 8011558
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Compatible Camera System: Contax G-series
Condition
Pre-owned vintage lens in excellent overall presentation, with signs of age and previous handling consistent with its photographs.
Please carefully review all photographs for the exact cosmetic and optical condition of the lens, viewfinder, case, packaging, and accessories.
Testing & Functionality
TESTED & WORKING — CONTAX G2
This lens has been mounted and tested on a Contax G2 camera body and is functioning properly.
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Successfully mounted and operated on a Contax G2.
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Autofocus functions correctly.
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Aperture operation functions correctly.
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Lens operates as intended during camera-mounted testing.
This is a fully camera-tested example rather than an untested or mechanically inspected lens.
Film-development results have not been independently verified.
What's Included
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Carl Zeiss Biogon T* 21mm f/2.8 lens
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Dedicated Contax GF-21mm optical viewfinder
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Original retail box
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Contax carrying case
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Front lens cap
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Rear lens cap
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Original instruction booklet
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Original paperwork
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Matching Carl Zeiss inspection certificate
All included accessories are shown in the photographs.
About the Carl Zeiss Biogon 21mm
The 21mm Biogon is one of the specialty wide-angle lenses produced for the Contax G camera system.
Its 21mm focal length provides an expansive perspective, making it particularly desirable for photographing architecture, interiors, urban environments, and landscapes.
The included GF-21mm external optical viewfinder allows photographers to compose accurately with the lens's wider field of view, which extends beyond the standard framing capabilities of the camera's built-in viewfinder.
Carl Zeiss T* multicoating helps control reflections and maintain contrast, while the Biogon optical design is known for its wide-angle imaging characteristics.
Compatibility
Designed for the Contax G1 and G2 camera systems.
Compatibility with the Contax G1 depends on the camera's lens-support configuration. This lens has been specifically tested and confirmed working on a Contax G2.
The included GF-21mm external viewfinder should be used for accurate composition.
Shipping & Handling
EXPEDITED SHIPPING — FULLY INSURED — SIGNATURE CONFIRMATION REQUIRED
Due to the value and collectible nature of this lens:
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Expedited shipping service
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Full shipping insurance covering the purchase value
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Signature confirmation required upon delivery
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Protective packaging for the lens, viewfinder, original box, and accessories
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Tracking information provided upon shipment
Final Sale Disclaimer
VINTAGE CAMERA LENS — FINAL SALE
This is a pre-owned vintage photographic lens that has been tested and confirmed operational on a Contax G2 camera body.
As with all vintage photographic equipment, future performance cannot be guaranteed.
All camera and lens sales are final, except where otherwise required by applicable law.
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