Kaufmann’s Posographe. An instrument for calculating aperture and exposure time when taking photographs in any possible situation.For outdoors, it includes settings with values like “Snowy scene”, “Greenery with expanse of water”, or “Very narrow old street”, “Cloudy and somber”, “Blue with white clouds”, or “Purest blue”. More info here.

Kaufmann’s Posographe.

An instrument for calculating aperture and exposure time when taking photographs in any possible situation.For outdoors, it includes settings with values like “Snowy scene”, “Greenery with expanse of water”, or “Very narrow old street”, “Cloudy and somber”, “Blue with white clouds”, or “Purest blue”.

More info here.