Hurter and Driffield photometer made by J Willis Grundy. For comparison of light sources, standard of unknown. Fitted with Lummer-Brodhun head on rack mounted carriage; moving on calibrated scale; standard lamp aperture fitted with rotating disc with 4 apertures.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/7976
- type:
- photometer
- credit:
- The Kodak Collection at the National Media Museum, Bradford
