Exposure correction calculator for taking close-up pictures

Details Exposure correction calculator for taking close-up pictures Exposure correction calculator for taking close-up pictures

1976-10-18

1978-08-01

Tomsky, Stephen J.

Registers

Calculators

Photographic

G06C 300

Patent

active

041045106

ABSTRACT:
The calculator of this invention is designed to be employed when the lens is extended from the camera body. The calculator includes a measurement scale to be positioned in the desired position to take the picture of the subject. The width of the viewfield is determined. The measurement scale has printed thereon different measurement values. Associated with each measurement value is a series of camera adjustment factors which is to note to the user suggested adjustments to compensate for the lens extension from the camera body.

REFERENCES:
patent: 1207448 (1916-12-01), Venable
patent: 2105255 (1938-01-01), Mihalgi et al.
patent: 2436966 (1948-03-01), Legris
patent: 3117722 (1964-01-01), Bugelholl
patent: 3199776 (1965-08-01), Koch

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