Camera finder

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G - Physics

03

B

88/114, 95/62

G03B 25/00 (2006.01) G03B 13/12 (2006.01) G03B 13/14 (2006.01)

Patent

CA 1250472

ABSTRACT OF THE DISCLOSURE A camera finder capable of indicating a view field frame for determining the range of photographing and a target mark for showing a desired focus adjusting portion. Interposed between an objective lens and an eye lens in this finder are holograms having recorded thereon view field frames and a target mark. The hologram is irradiated by a reference beam or beams, whereby the view field frame and the target mark are regenerated. In the hologram, there are recorded a first view field frame in which a parallax is corrected in the long-medium distance and a second view field frame in which a parallax is corrected in the short distance. A beam source for regenerating each view field frame is selected in accordance with an object distance, whereby a view field frame corresponding to the object distance is regenerated, The parallax can be corrected as described above.

451308

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