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Sensitometer

Sensitometer

Warnerke Sensitometer

Warnerke Sensitometer

High Speed Sensitometer

High Speed Sensitometer

1945

Warnerke's Standard Sensitometer

Warnerke's Standard Sensitometer

Spurge sensitometer

Spurge sensitometer

Variable Aperture Sensitometer

Variable Aperture Sensitometer

1918

Darkslide containing step wedge with 21 steps. Phosphorescent plate made luminous by burning magnesium and placed in holder. Plated exposed through wedge under luminous plate for 30 seconds. No.79. L.Warnerke.

Warnerke's Standard Sensitometer

Box containing Chapman Jones plate tester in darkslides. Exposure board with candle holder (folding candle shade missing) and candles. Sanger Shepherd and Co.

The Chapman Jones Plate Tester

Printing frame for 9x12 cm plate, containing continuous wedge with red, green, blue and yellow filter strips. In original carton with German instructions.

Herlango Eder-Hecht sensitometer

1922-1932

Drum sensitometer

Drum sensitometer

Exposure ratio between steps 1:1.27; largest opening 100º, smallest 1º, blackened brass, 430mm diameter.

Eder-Scheiner sensitometer disc

1904

Guillotine type shutter; sample holder with step wedge; steps from 0.1 to 3.0. Incandescent light source; provision for water cell (missing); circular level in base.

Zeiss Ikon Sensitometer DIN Type, 1934

1934

Motor controlloer for High speed sensitometer, designed by R.J. Hercock, c. 1945

Motor Controller for High Speed Sensitometer

1945

Disk sensitometer made by an unknown manufacturer about 1900. Long box with filter compartment and flap, attached to enclosed disc chamber. Sample holder with four separate strip darkslides. Pulley drive for disc. End nearest light source charred.

Disc Sensitometer

1880-1920

Cut by Hilger for Cadett & Neal. Hurter and Driffield pattern, nine steps with angular values 1.25º - 320º. 387mm, blackened brass.

Cadett & Neal sensitometer

1904

Disc sensitometer; electric driver sector wheel; no lamphouse; used in plate and film testing.

Disc sensitometer

Opal glass screen, with plate with 24 graduated holes behind. 24 compartments; for 1/4 plates.

Spurge sensitometer

Electric motor-drive; metal sector disc approx 260mm diameter; flap shutter; no light source.

Disc sensitometer

Large sensitometer disc approx. 4" diameter; electric motor driven; in wooden housing. Lamphouse is 1990-5036/8611.

Sensitometer disc

Disc sensitometer

Disc Sensitometer

High speed sensitometer, designed by R.J. Hercock, c. 1945

High Speed Sensitometer

1945