Camera

In a photographic or cinematographic camera, in particular with a pancratic (zoom) objective lens and a comparator for comparison of the desired setting e.g. of the near point (punctum proximum) and of the far point (punctum remotum) of a camera space and of the actual setting e.g. of the depth of field, the desired setting being adjusted by means of presetters, the actual setting resulting from the actual setpoints of the objective lens, such as distance, diaphragm and under circumstances focal length, whereby upon differences between the desired setting and the actual setting, a signal can be released, which signal can be fed to an indicator device, and respectively, or to a control device, the improvement comprising

• a comparator operatively connected to the objective lens so as to receive a first input representative of an actual value of a parameter of the actual setting of the objective lens,
• a memory means including several memory sections each connected to said comparator,
• selection means connected to said memory means for transfering inputs representative of values of the actual settings of the objective lens and of the diaphragm to each of said memory sections,
• said several memory sections having tabular-like fixed storage of all setpoints which are necessary for a plurality of settings and/or limit values of objective lens settings including corresponding fixed stored precalculated values of said parameter in said several memory sections, the several memory sections each being associated with different ranges of desired values of the depth of field, said memory means for being available for sending signals from each of said memory sections respectively to said comparator, said signals being representative of the stored precalculated values of said parameter, corresponding to said different ranges, for the actual setting of the objective lens and of the diaphragm,
• said comparator constitutes means for comparing said signals with said first input and for providing outputs respectively representing the comparisons,
• means comprising presetters representing desired values of the depth of field and for operatively selecting a desired depth of field value and for operatively selecting said signals of a corresponding of said memory sections and said outputs of said comparator representing the comparison of the latter mentioned said signals with said actual value of said parameter for providing an evaluation signal for a necessary readjustment of said parameter and said objective lens when said latter mentioned said signals and said first input are not equivalent.