Chronoscope PAP - Antique and Vintage Cameras

Chronoscope PAP

1912

Image of Chronoscope PAP

Meter Type:
Actinometer.

An unusual meter, patented by Paul Boucher of Paris, which produces a small paper negative of the subject. The front cap pulls off to reveal a large plano-convex lens, at the back of the meter is a magazine holding a stack of sensitive paper. The image produced can be viewed in subdued light, medium densities in the negative were compared to standard tints painted on the front of the paper-magazine. The closest matching tint and the time taken to reach that tint were then found in a table which gave the exposure time. Only four tints are present, the patent shows more.

References & Notes:
BP 12156/1912. Kodak Museum Catalogue, p. 15.

Actinometers

Stanley Actinometer

Watkins

Standard, Junior

Watch Type
Dial Meter

Bee

Queen Bee

Autochrome, Colour, Indoor
Studio, Snipe

Focal Plane, Fall, Snapshot
Kinematograph, Small Cine
Filmo

Wynne

Infallible, Snapshot

Silver Infallible, Silver Gem

Hunter Meter

Other

Adams Meters

Imperial Exposure Meter

Le Chronopose Exact
Haka Expometer
Universal

Chronoscope PAP


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