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Contax 1.4X Mutar III T* C/Y Mount Teleconverter

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* Item pictured for illustrative purposes only, actual item not pictured.

Contax 1.4X Mutar III T* C/Y Mount Teleconverter Description


Carl Zeiss has introduced a new Mutar Tele-Extender, the Mutar III 1.4X. Tele-Extenders will provide added focal length to a Carl Zeiss T* lens. This is an excellent way to save the cost of an occasional use lens. A tele-extender will multiply the focal length of a lens by the amount noted on the extender. In the case of the 2X it multiplies the focal length by 2 times, with the loss of two f stops. The 1.4X multiplies focal length by 1.4 X while losing only one f stop of lens speed. This means that your Carl Zeiss T* Sonnar 180mm f2.8 will be an effective 252mm in focal length at f4. That is an appreciable gain in focal length without a prohibitive loss in lens speed. When the effective f stop changes by the introduction of a tele-extender or with bellows extension, the exposure changes but the depth of field stays the same as the original lens f stop.

KEH Specifications

  • Magnification: 1.4x
  • Relative Aperture: Reproduction of lens aperture set by 1 f-stop
  • Compatible Lenses: Carl Zeiss Contax SLR lenses
  • Elements/Groups: 6/4
  • Lens Diameter: 29mm
  • Mount: Bayonet mount, TTL metering at full aperture or in stopped-down
  • Weight: 244g


Physical Characteristics

Lens Mount Contax MM

General information

Brand Name Contax

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