Exposure control with reduced shutter speed for tele/pan camera

Claim 1

A photographic camera for exposing a film frame for use in producing a pseudo telephoto print, said camera comprising: an objective lens; means for selecting a pseudo telephoto field of view reduced from the actual field of view of said objective lens; exposure control means including a photosensitive element disposed to receive ambient light; light control means, responsive to the selection of a pseudo telephoto field of view, for controlling the amount of light reaching said photosensitive element in accordance with the amount of light available to the pseudo telephoto field of view; means, responsive to said ambient light reaching said photosensitive element, for determining shutter speed and aperture values for proper exposure of said film frame; and means, responsive to the selection of a pseudo telephoto field of view, for modifying said determined shutter speed value to a faster value and for modifying said determined aperture value to a correspondingly wider aperture value consistent with said proper exposure.

Claim 6

A method for automatically selecting camera parameters for the proper exposure of a film frame in a camera having an objective lens with an actual field of view; means for selecting between normal print and pseudo format print settings; means, responsive to said selecting means, for coding said film to identify all of said frame for printing during subsequent processing to provide a print having a field of view corresponding to said actual field of view if said normal print setting is selected, and to identify a portion less than all of said frame for printing during subsequent processing to provide a print having a field of view different from said actual field of view if said pseudo format print setting is selected; and exposure control means for automatically establishing camera parameters for proper exposure of said frame; said method comprising the steps of: selecting between said normal print and said pseudo format print settings using said selecting means; in response to said selected setting, establishing said camera parameters for exposure of said frame suing said exposure control means, so that a faster shutter speed will be selected for exposure of said frame for said pseudo format print setting than for said normal print setting.

Claim 7

A method for automatically selecting camera parameters for the proper exposure of a film frame in a camera having an objective lens with an actual field of view; means for selecting between normal print and pseudo format print settings; means, responsive to said selecting means, for coding said film to identify all of said frame for printing during subsequent processing to provide a print having a field of view corresponding to said actual field of view if said normal print setting is selected, and to identify a portion less than all of said frame for printing during subsequent processing to provide a print having a field of view different from said actual field of view if said pseudo format print setting is selected; and exposure control means for automatically establishing camera parameters for proper exposure of said frame; said method comprising the steps of: selecting between said normal print and said pseudo format print settings using said selecting means; in response to said selected setting, establishing said camera parameters for exposure of said frame suing said exposure control means, so that a faster shutter speed will be selected for exposure of said frame for said pseudo format print setting than for said normal print setting.