Abstract: An apparatus is used to manually set a parameter of a lens of a television, video or studio camera, and especially to set the distance between the camera and an object which is to be photographed. The apparatus which is connectable with the camera, has a hand wheel that can be rotated about an axis of rotation, as well as an adjusting wheel that can be connected through a gear mechanism with the hand wheel to engage a corresponding wheel at the lens for setting the parameter. Two stops, which can be adjusted variably relative to one another and fixed at different angular positions, are provided for limiting the angle of rotation of the hand wheel. A counterstop, arranged in the path of the two stops, is connected torsionally rigidly with the hand wheel.

Abstract: An apparatus is used to manually set a parameter of a lens of a television, video or studio camera, and especially to set the distance between the camera and an object which is to be photographed. The apparatus which is connectable with the camera, has a hand wheel that can be rotated about an axis of rotation, as well as an adjusting wheel that can be connected through a gear mechanism with the hand wheel to engage a corresponding wheel at the lens for setting the parameter. Two stops, which can be adjusted variably relative to one another and fixed at different angular positions, are provided for limiting the angle of rotation of the hand wheel. A counterstop, arranged in the path of the two stops, is connected torsionally rigidly with the hand wheel.