ES47887U - A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
- Google Patents
A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
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Individual
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Individual
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Investigating Or Analysing Materials By Optical Means
(AREA)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications
(AREA)
Photographic Processing Devices Using Wet Methods
(AREA)
Abstract
A device for calculating the exposure in the photographic enlargements and the degree of contrast of the paper to be used for them, by comparing two lights, characterized by a support having an aperture having an opaque part and a transparent or translucent part, both colored, the opaque part being intended to receive the light from the enlarger and the transparent or translucent part to allow the passage of the comparison light arriving at the opening from a variable light source. (Machine-translation by Google Translate, not legally binding)
ES0047887U1955-05-051955-05-05A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
PendingES47887U
(en)
A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
A device for calculating the exposure of photographic enlargements and the degree of contrast of paper to be used for them by a two-light corporation (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of fixed view projectors for opaque and transparent bodies (Machine-translation by Google Translate, not legally binding)