Voigtlander Heliar 210mm f4.5 barrel lens

Background:

Voigtlander & Son Optical Company were the USA branch agency of the Voigtlander Braunschwig Company,

Germany, subsequently formed from Voigtlander AG Wien, Austria. The Heliar design were represented by a

family of lenses as an in-house anastigmat design, created with moderately fast apertures to compete with

Zeiss Planars, Dallmeyer Stigmatics and Cooke Triplets.  Most Voigtlander Heliar lenses are available in the

original black lacquered brass barrel with a few available in an aluminum alloy compound.

From the Lens Vade Mecum:

Features:

Filter:                 55mm front threaded filter

The 210mm Heliar differs from the 'universal Heliar' design of the 300mm, 360mm and 420mm focal lengths which

offered a soft focussing ring.  Both versions were available mounted in Compound shutters or as barrel lenses.  A

number of Heliar 210mm lenses do not fit in Compound No.3 shutters. 

Acknowledgements to Camera Eccentric for tables and data.

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Comments, revisions and suggestions welcome.