Posographe Exposure Calculator by Kaufmann

Posographe Exposure Calculator by Kaufmann

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Kaufmann’s Patented Posographe

Vintage – 1920’s

Made in Puteaux, France

Good Condition, some signs of wear around edges.

A scarce vintage analog computer calculator for photography with working mechanism, based on multiple cams.

Exposure is calculated using various factors such as time of year, situation (inside, outside), city-scapes, country views, weather conditions, sensitivity of the film emulsion etc.

Dimensions

5 x 3 inches

Circa

1920

Country of manufacture

France

Categories: Scales Weights & Measures, Other Technology Antiques, Photography

Description

Kaufmann’s Patented Posographe

Vintage – 1920’s

Made in Puteaux, France

Good Condition, some signs of wear around edges.

 

A scarce vintage analog computer calculator for photography with working mechanism, based on multiple cams.

Exposure is calculated using various factors such as time of year, situation (inside, outside), city-scapes, country views, weather conditions, sensitivity of the film emulsion etc.

 

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Dealer information

FR Toby Whitfeld

Toby Whitfeld

I first started selling vintage cameras in Camden Town, London in 1981, then moved to Portobello Rd in 1985, where I started adding scientific instruments to my stock. I also exhibited at the Scientific Instrument Fair in London in the 1990's, but left the UK to live in Southern France in the year 2000. I started trading again in 2009, and since then I have been sourcing items in France and UK for clients here in Perpignan and back in UK.