Film speeds conversion table leaflet.
Johnsons and Hendon
Category
Photographic technology
Date
Unknown
Materials
Paper
Measurements
82 x 120 mm
Place of origin
London
Collection
Fox Talbot Museum, Wiltshire
NT 1525824.2
Summary
Film speeds conversion table leaflet. The Film speeds conversion table leaflet is reprinted from Johnson Wellcome Photographic Year Book, 1950. TABLE X B.S. Exposure Index Scheiner (British and Continental) A.S.A. Exposure Index & D. (British) Ilford Group Wellcome Exposure Factor With the relevant details against each heading.The leaflet is printed on cream paper and is folded into 4.
Provenance
Donated to the Fox Talbot Museum by J. Hogwood.
Makers and roles
Johnsons and Hendon, manufacturer