All About Photographic Lenses. Specifications, comparison, reviews, MTF-charts for lenses by Canon, Nikon, Sony, Pentax, Olympus, Sigma, Tamron, Carl Zeiss, etc.
The Helios-94 50mm f/1.8 (Russian: Гелиос) is a fast normal prime lens for 35 mm Kiev-5 rangefinder bayonet cameras.
The lens' positive elements contain lanthanum crown glass, which has helped enhance optical performance as compared to the mass produced Jupiter-8 lens, and at the same time retaining an increased lens speed. (Photography Optics by Vlasov D.S.)
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