Abstract: A telescopic sight with variable magnification includes an adjusting ring for varying the magnification. The telescopic sight housing and an eyepiece stub are arranged together in a single part. The adjusting ring is arranged between the eyepiece and an object in a groove formed between the telescopic sight housing and the eyepiece stub.

Abstract: The invention is directed to a pancratic system in an optical apparatus having a guide tube wherein at least one lens is moved in the guide tube. At least two guide rails are provided between the lens and the guide tube for guiding the lens. The surfaces of the intermediate spaces between the guide rails are configured so as to be poorly reflective and the space between the guide rails is also configured so as to be poorly reflecting.

Abstract: A binocular telescope includes adjustable optical components. The telescope has at least two telescope halves, respectively having an optical axis passing through an ocular and an objective. The adjustable optical components lie between the ocular and objective in a respective housing tube. The telescope has, between the two telescope halves, an axis that is essentially aligned parallel to the two optical axes, and in which a shaft body is arranged. The shaft body has a longitudinal slot in which an adjusting body, displaceable in the longitudinal axis of the shaft body, is arranged. This adjusting body is adjustable in the longitudinal direction from outside the telescope, its axial movement being coupled with the movable optical components for common focusing. A separate drive knob is arranged to change the axial position of one optical component in one telescope half to compensate for visual defects.