what is hologon.....
Answers
ANSWER ●•
The name "hologon" is derived from the Greek words holos, meaning " everything" or "complete" , and gonia, meaning " angle ; gonia contributed the final syllable - gon, which had been used in preceding Zeiss wide angle lens designs such as the Zeiss distagon and biogon.
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The Zeiss Hologon is an ultra wide-angle f=15mm f/8 triplet lens, providing a 110° angle of view for 35mm format cameras. The Hologon was originally fitted to a dedicated camera, the Zeiss Ikon Contarex Hologon in the late 1960s; as sales of that camera were poor and the Zeiss Ikon company itself was going bankrupt, an additional 225 lenses were made in Leica M mount and released for sale in 1972 as the only Zeiss-branded lenses for Leica rangefinders until the ZM line was released in 2005. The Hologon name was revived in 1994 for a recomputed f=16mm f/8 lens fitted to the Contax G series of rangefinder cameras.
Explanation:
Introduced in
1966
Author
Erhard Glatzel
Construction
3 elements in 3 groups
Aperture
ƒ/8