Masking device for cropping photographs viewed on a view screen

Details Masking device for cropping photographs viewed on a view screen Masking device for cropping photographs viewed on a view screen

1978-09-15

1980-05-13

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

With focusing or projection screen

354159, 355 74, G03B 1702, G03B 1328, G03B 2758

Patent

active

042026245

ABSTRACT:
A masking device for cropping photographs which are viewed on a view screen of a photographic printer. The masking device allowing the operator of the photographic printer to see exactly what portion of a photograph is being cropped prior to the printing of the photograph. The mask further providing a key for signaling the electronic system of the printer how much paper should be advanced for the cropped photograph and correcting the exposure setting of the printer.

REFERENCES:
patent: 1084234 (1914-01-01), Scott
patent: 2247104 (1941-06-01), Takacs
patent: 2938427 (1960-05-01), Alves
patent: 3488119 (1970-01-01), Dixon et al.
patent: 3560087 (1971-02-01), Washio et al.
patent: 3685904 (1972-08-01), Kring et al.

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