Abstract: A manually operable flashlight unit (10) having a foot part (11) fitting a finder shoe (6) on a camera (1), standard contacts (9′) for chassis ground and (8′) for flash release being arranged in the foot part (11), has the additional feature that a single further contact (7′) is provided in the foot part (11) for a bidirectional information exchange between a circuit arrangement (13) contained in the flashlight unit (10) and a circuit arrangement (12) arranged in the camera (1).

Abstract: A cylindrical mount (1) for optical components of a variable-power objective, includes an inner straight-line guide (2, 3), with a cam control (13) which is capable of being actuated via a rotary ring (15) arranged on the outside of the mount and which is intended for the adjustment of carriers, (4, 4', 5) for lenses or lens groups relative to one another in order to change the focal length. A further rotary ring (19) is provided for adjusting a holder (10) for lenses or lens groups for setting the focus of the objective. The holder (10) is arranged on a linear guide (8, 9) which is adjustable in the direction of the optical axis (24) and which is fastened to a carrier (4') displaceable with the change in focal length. The further rotary ring (19) has, on its inner cylindrical surface, a cam carrier (18) which is held displaceably in the direction of the optical axis (24) on the cylindrical surface.

Abstract: An image stabilizing instrument, for example for a binocular, in which synchronous image stability is achieved by fastening two objectives (2, 2') and two attached first reflecting optical elements (3, 3') to a stabilized frame (22), uni-axially pivoted in a cardanic part (11). Second optical elements (4, 4') in each of two parts of the binocular are fastened to the cardanic part (11), which in turn is uni-axially pivoted in the binocular housing (9). The front window fastened to the housing is designed as a color-correcting lens (106) to correct for color aberration.

Abstract: A device for exposure metering in photographic cameras including a reflector located in the imaging beam path. The surface of the reflector is provided with a reflecting structure whose size corresponds at least approximately to that of the image recording format. At least one photoelectric receiver records the light intensity of a portion of the image reflected from the reflecting structure. The reflector is pivotally mounted in the camera housing such that during exposure metering the reflector surface is in the vicinity of the film plane of the camera. A limited portion of the reflector is transparent and a photoelectric receiver is set into the backside of the reflector behind the transparent portion.

Abstract: A pushbutton switch is disclosed which may be used, for example, in a camera. The switch has multiple positions which can be easily sensed by the operator as a point of resistance which is felt at each position. The switch may have an axially moveable spring biased switching rod at a defined electrical potential with an insulated region. A plurality of spring biased electrical contacts bear radially against the switching rod. A plurality of spring biased stops extending radially toward the path of axial movement of the switching rod correspond to the respective electrical contacts. Axial movement of the switching rod brings the contacts into successive contact with the conducting portion of the switching rod. The spring biased stops bear against the end of the switching rod at approximately the points of axial movement at which their corresponding contacts make contact with the conducting portion of the swiching rod, thereby generating a counterpressure which may be sensed by an operator of the switch.

Abstract: The present invention provides a multiple exposure image position securing device for a camera having a housing, the device having a slide positioned on the housing, a rewind release button protruding from the housing adjacent the slide, a film transport mechanism located within the housing, a coupler located within the housing and coupled with the film transport mechanism, a lever mechanism extending between the rewind release button and the coupler, a catch lever selectively engaging the coupler, a pawl selectively engaging the film transport mechanism, and a winder positioned on the housing and coupled to the film transport mechanism.