Weston Photographic Products - 1944? User manual

INTERESTING FACTS ABOUT
WESTON PHOTOGRAPHIC EXPOSURE METERS

Weston produced the first photoelectric
photographic exposure meter containing a dry
dise type of barrier layer photocell in 1932.

Weston Photoelectric Cells are designated by
the copyrighted name PHOTRONIC.

‘The photoelectric cell converts light energy
into electrical energy without any loss in the
life of the cell.

All metals ending in “ium” have the property
of converting light into electricity, After al-
most one hundred years of research, selenium,
as used in the Weston PHOTRONIC Photo-
electric Cell, is still the best material known
for the purpose.

Eleven different exposure meters have been
designed by Weston since 1932. It is but

tural that such improvements as greater sen-
ivity to low light, sealing of the photoelectric
cell to insure permanence, greater legibility of
scales and Exposure Control Dials, reduction in
meter size and greater ruggedness, should take
place over years of continued research and de-
velopment on electrical measuring instruments
and photoelectric cells.

It was the general practice among photog-
raphers, before exposure meters were avail-
able, to adhere to the use of one preferred film
in order to assure proper exposure based upon
experience. Today photographers switch from
black-and-white, rated at Weston 100, to color
‘at Weston 8 and, by a simple flick of the Ex-
posure Control Dial on their Weston Exposure
Meter, correct exposures are assured for all
shots.

‘The Exposure Control Dial on Weston Ex-
posure Meters is so universal that hundreds of
Photographic problems can be solved on it in
the same manner that mathematical problems
are solved on a slide rule.

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Master II Exposure Meters
Page 2

Invercone Incident Light Adapter
Page 6

Cadet Exposure Meter
Page 8

Photographic Analyzer
Page 9

Photographic Thermometer
Page 10
Weston Film Ratings
Page 11

Interesting Facts About Weston
Photographic Exposure Meters
Inside Cover

Page 1

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