Practos Exposure Meter

Practos Exposure Meter

Practos Exposure Meter
Science Museum Group
© The Board of Trustees of the Science Musuem

Visual extinction exposure meter in leather pouch with instruction sheet by Practos.

Details

Category:
Photographic Technology
Object Number:
Y1977.38
Materials:
metal (unknown), plastic (unidentified), glass, leather and paper (fibre product)
Measurements:
overall: 35 mm x 59 mm x 118 mm,
type:
photographic equipment
credit:
Gift of Gerry Needham