FR768284A - Photometer to determine the optimum exposure time in photography - Google Patents

Photometer to determine the optimum exposure time in photography

Info

Publication number
FR768284A
FR768284A FR768284DA FR768284A FR 768284 A FR768284 A FR 768284A FR 768284D A FR768284D A FR 768284DA FR 768284 A FR768284 A FR 768284A
Authority
FR
France
Prior art keywords
photometer
photography
exposure time
optimum exposure
optimum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Walter Ernst Hiltpold
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR768284A publication Critical patent/FR768284A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/60—Photometry, e.g. photographic exposure meter by measuring the pupil of the eye

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR768284D 1933-03-01 1934-02-08 Photometer to determine the optimum exposure time in photography Expired FR768284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT768284X 1933-03-01

Publications (1)

Publication Number Publication Date
FR768284A true FR768284A (en) 1934-08-03

Family

ID=3680646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768284D Expired FR768284A (en) 1933-03-01 1934-02-08 Photometer to determine the optimum exposure time in photography

Country Status (1)

Country Link
FR (1) FR768284A (en)

Similar Documents

Publication Publication Date Title
FR805416A (en) Magazine-charger for cinematographic cameras
FR768284A (en) Photometer to determine the optimum exposure time in photography
FR767190A (en) Improvements to photographic emulsions
FR764297A (en) Semi-automatic photographic retouching
FR782728A (en) Improvements to peelable photographic films
FR803584A (en) Improvements to photographic films
FR800772A (en) Improvements to film or photographic film
FR768557A (en) Improvements to photographic magnifiers
FR812919A (en) Handle for cameras
FR760136A (en) Photometer for determining the exposure time when taking photographs
FR774211A (en) Fast camera for photographic enlargements
AU2313135A (en) Improvements in or relating to photographic roll-film cameras
CA337793A (en) Photographic roll-film
FR778659A (en) sensitive elements for photography
FR801847A (en) Photoelectric light meter for photographic and cinematographic cameras
FR792506A (en) Camera for full color photography
AU1403133A (en) Improvements in or relating to photographic cameras
AT144716B (en) Photographic camera.
FR767378A (en) Further training in cameras
FR778340A (en) Improvements in photography
FR44067E (en) Shutter for cameras
AU398231A (en) Improvements in photographic cameras
FR764665A (en) Photographic shutter
FR773982A (en) Photographic shutter
CA335046A (en) Camera exposure indicator