Astro-Berlin R.K. 1.25/50mm for Leica M *

Startpreis 3.000 €

Gebote: 0

Schätzpreis
5.000 – 6.000 €

Dieses Los unterliegt der Umsatzsteuer in gesetzlicher Höhe des jeweiligen Bestimmungslandes auf Hammerpreis und Premium (Vollbesteuerung), sofern es in der EU verbleibt

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Seriennummer

15946

Jahr

c.1930

Zustand

Produktnummer

A04055

A very rare and exceptionally fast Astro-Berlin R.K. 1.25/50mm. Originally developed around 1930 as a special-purpose Röntgen-Kino lens, the R.K. series was designed for scientific photography and cinematography, including X-ray imaging and photography of the aurora borealis; the 50mm f/1.25 is documented in early-1930s northern-lights research. The unusually fast optical design was developed by Astro co-founder Hugh Ivan Gramatzki and is related to his patented Petzval-type f/1.25 construction. The present example has been modified with a focusing mount for Leica M, making this fascinating ultra-fast optic usable on modern M cameras.