A camera can perform two different photographing operations with a lens at different positions without vignetting while preventing entry of light and dust. A camera includes a frame including a film compartment to contain a photographic film and a barrel extending from the film compartment in an optical axis direction, and a lens barrel movable in the barrel in X-direction. The lens barrel includes cylinders movable frontward relative to the barrel, and a cylinder movable frontward relative to the cylinder. The camera includes a rear bellows connecting the frame and the cylinder, and a front bellows connecting the cylinder and the cylinder. In a first photographing state in which the cylinders extend frontward relative to the barrel and the cylinder is accommodated inside the cylinder, the rear bellows is expanded and the front bellows is partially contracted. In a second photographing state, the cylinder extends frontward relative to the cylinder.

A camera is less likely to have lower light-shielding performance. The camera includes a frame accommodated in a housing having a front surface with an opening, a lens barrel accommodating a lens, a rear light shield that blocks light outside the lens barrel, and a pressure plate pressing the rear light shield against the frame and securing the rear light shield to the frame. A base in a stationary cylinder has an inner surface being rectangular, an arc surface extending outward in an arc along a cylindrical wall, and a contact surface in contact with a front surface of the pressure plate. The pressure plate includes a pressing portion being a rectangular frame extending along the inner surface of the base in the stationary cylinder and in contact with a rear connector in the rear light shield, and an extension extending outward from the pressing portion and facing the arc surface of the base in the stationary cylinder.

A camera can perform two different photographing operations with a lens at different positions without vignetting while preventing entry of light and dust. A camera includes a frame including a film compartment to contain a photographic film and a barrel extending from the film compartment in an optical axis direction, and a lens barrel movable in the barrel in X-direction. The lens barrel includes cylinders movable frontward relative to the barrel, and a cylinder movable frontward relative to the cylinder. The camera includes a rear bellows connecting the frame and the cylinder, and a front bellows connecting the cylinder and the cylinder. In a first photographing state in which the cylinders extend frontward relative to the barrel and the cylinder is accommodated inside the cylinder, the rear bellows is expanded and the front bellows is partially contracted. In a second photographing state, the cylinder extends frontward relative to the cylinder.

Rather than simply integrating with existing equipment by replacement the film holder, this invention is designed to modify existing large format camera equipment substantially by replacing the film holder, film holder receiver, and the traditional full-frame bellows with the apparatus and an external digital sensor.

The apparatus is comprised of a digital sensor mount that slides within an interior frame along one axis, while the interior frame itself slides along an orthogonal axis within an exterior frame. Additionally, instead of a full-frame bellows, a much smaller partial-frame bellows protects the sensor from ambient light while flexing to accommodate the motion of the sensor along both axes.

Overall, this invention provides the following benefits over prior art: 1) it permits a greater range of sensor motion and composite resolution for a given external frame size; 2) it eliminates the need for a light shield from the rear frame; 3) its lack of a protruding light shield permits a wider range of external frame movements described by the Scheimpflug principle; 4) it is simpler to construct, and; 5) it is easier to operate.

A camera is less likely to have lower light-shielding performance. The camera includes a frame accommodated in a housing having a front surface with an opening, a lens barrel accommodating a lens, a rear light shield that blocks light outside the lens barrel, and a pressure plate pressing the rear light shield against the frame and securing the rear light shield to the frame. A base in a stationary cylinder has an inner surface being rectangular, an arc surface extending outward in an arc along a cylindrical wall, and a contact surface in contact with a front surface of the pressure plate. The pressure plate includes a pressing portion being a rectangular frame extending along the inner surface of the base in the stationary cylinder and in contact with a rear connector in the rear light shield, and an extension extending outward from the pressing portion and facing the arc surface of the base in the stationary cylinder.