Abstract: A simple camera for use in a telescope having a hollow support cylinder that is capable of being slipped into the focus mount tube of the instrument for mounting and positioning the camera in reference to the image plane of the telescope. The cylinder depends from the base of the camera and encloses an aperture formed in the base so that the telescope image is allowed to pass directly into the camera. The main housing of the camera is pivotably supported on the base and contains a plurality of film-holding compartments that can be selectively moved over the aperture to expose the film contained therein whereby a number of exposures can be made without having to reload the camera. A viewing window is further provided in the housing that is also capable of being positioned over the aperture to permit visual observation of the image without having to remove the camera from the instrument.

Abstract: A simple and inexpensive camera for use in conjunction with a telescope that includes a hollow mounting cylinder that is able to be conveniently slipped into the focus mount of the telescope to align the camera along the optical axis of the instrument and to properly locate the camera thereupon. In assembly, the cylinder depends downwardly from the bottom of the camera housing and conducts the telescopic image into an exposure aperture passing vertically through the housing. A film slit passes horizontally through both the housing and the aperture to provide a guideway for positioning film over the aperture within the image plane of the telescope. A slide containing a ground optical element is slidably supported in the aperture whereby the element is movable into a first position within the image plane of the telescope to present a light image of an observed body thereupon, and into a second position wherein the bottom surface of the element is coextensively aligned with the top wall of the film slit.