Bewi Precision Exposure Meter
Telescope type extinction meter. Blue image of scene surrounded by numbers 1-12 visible in focusing eyepiece. Adjustable Schiener scale 1-27, with shutter of speeds 1/3000sec - 3 hours, apertures f/2.2-50. Depth of focus table for 3,4 and 5 1/2 inch lenses. Moving object table too.
- Materials:
- glass , leather , metal (unknown) and plastic (unidentified)
- Object Number:
- 1990-5036/2118/4
- type:
- exposure meter