Paterson Cds enlarging computer with cds cell controls voltage applied to a neon lamp. Brightness of light falling cell controlled by rotating mask with slot of diminishing width. Calculator dial calibrated in paper speeds A-M and seconds 2.5-110. For 210-250v.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/4133
- Materials:
- glass
- credit:
- The Kodak Collection at the National Media Museum, Bradford
