|
1950
|
P
K McLaren
|
Speedlights,
slides and demonstration
|
|
1951
|
J
G W Thomson
|
Photometers
for Camera Exposures
|
|
1951
|
H
S Newcombe
|
Lenses
and Filters for the Miniaturist and others
|
|
1956
|
John
T Knight
|
Paper
Negatives
|
|
1956
|
Donald
Allen
|
The
Pictorial Possibilities of Multigrade
|
|
1957
|
George
Cruickshank
|
Exposure
Meter and Exposure
|
|
1959
|
Percy
W Harris
|
New
Developments in Films and Developers
|
|
1959
|
Dr.
J B Booke
|
Lens
and Film Resolution [demonstration]
|