Automatic Recording of Photographic Densities

J. G. Frayne, G. R. Crane

The Western Electric 1100-type densitometer has been modified to permit direct recording of H and D curves and other photographic data. A special linear 80 db Speedomax recorder permits direct recording of densities from zero to 4.0.

Print ISSN
Published
1945-11
Content type
Original Research
DOI
10.5594/J12819