An attachment of a smartphone for a film camera disclosed herein includes: a camera attachment (31) to be attached to a camera back lid portion; and a smartphone attachment (32) coupled to the camera attachment (31) to hold a smartphone. The camera attachment (31) includes a projection screen (312) on which an image that is photographed is projected through a camera lens. The smartphone attachment (32) includes a correction lens (322) to focus on the image projected on the projection screen and allow a smartphone camera to photograph the image by close photographing. The attachment of a smartphone for a film camera aligns the camera lens, the projection screen, and the correction lens along an optical axis (5) of image capturing of the camera and focuses on an imaging medium of the smartphone to allow the image photographed by the film camera to be digitized and stored.

A camera system for mounting to a scope can include a camera portion and a mounting system rotationally coupled to the camera portion. The mounting system can include a first securing portion having a first securing member, where the first securing member is configured to abut against a first portion of an eyepiece of the scope. The mounting system can also include a second securing portion having a second securing member, where the second securing member is configured to abut against a second portion of the eyepiece of the scope. The mounting system can further include an adjustment mechanism that simultaneously moves the first securing portion and the second securing portion in opposing directions relative to each other.

A camera system for mounting to a scope can include a camera portion and a mounting system rotationally coupled to the camera portion. The mounting system can include a first securing portion having a first securing member, where the first securing member is configured to abut against a first portion of an eyepiece of the scope. The mounting system can also include a second securing portion having a second securing member, where the second securing member is configured to abut against a second portion of the eyepiece of the scope. The mounting system can further include an adjustment mechanism that simultaneously moves the first securing portion and the second securing portion in opposing directions relative to each other.

There is provided converter lens system including a first lens that is a negative lens of which both surfaces are concave, a second lens that is a negative lens of which both an image plane side and an object side are convex toward an object side, and a third lens that is a positive lens of which both sides are convex. The first to third lenses are disposed in this order from the object side, and the converter lens system is inserted and used between an imaging lens and a camera.

There is provided converter lens system including a first lens that is a negative lens of which both surfaces are concave, a second lens that is a negative lens of which both an image plane side and an object side are convex toward an object side, and a third lens that is a positive lens of which both sides are convex. The first to third lenses are disposed in this order from the object side, and the converter lens system is inserted and used between an imaging lens and a camera.

A rotational device for rotating an endoscope having a stationary assembly, a rotatable assembly, which includes a distal coupling means for coupling to an endoscope, a drive means, which is embodied for putting the distal coupling means into rotational motion for rotating an endoscope connected to the distal coupling means, a proximal coupling means at the stationary assembly for coupling to a camera device, and an optical unit for transmitting light from the distal coupling means to the proximal coupling means.

A rotational device for rotating an endoscope having a stationary assembly, a rotatable assembly, which includes a distal coupling means for coupling to an endoscope, a drive means, which is embodied for putting the distal coupling means into rotational motion for rotating an endoscope connected to the distal coupling means, a proximal coupling means at the stationary assembly for coupling to a camera device, and an optical unit for transmitting light from the distal coupling means to the proximal coupling means.

An interface facility has a first facility element connected to an ocular, a device case configured to connect to a smart device, a second facility element connected to the device case, the first and second facility elements being configured to connect to each other in a connected condition and to detach from each other, the first facility element being registered with a first optical axis associated with the ocular, the second facility element being registered with a second optical axis associated with the camera, the first and second optical axes being registered with each other when the first and second facility elements are in the connected condition, such that the camera records images generated by the ocular. The first and second facility elements may comprise a bayonet mount.

An interface facility has a first facility element connected to an ocular, a device case configured to connect to a smart device, a second facility element connected to the device case, the first and second facility elements being configured to connect to each other in a connected condition and to detach from each other, the first facility element being registered with a first optical axis associated with the ocular, the second facility element being registered with a second optical axis associated with the camera, the first and second optical axes being registered with each other when the first and second facility elements are in the connected condition, such that the camera records images generated by the ocular. The first and second facility elements may comprise a bayonet mount.

A camera system for mounting to a scope can include a camera portion and a mounting system rotationally coupled to the camera portion. The mounting system can include a first securing portion having a first securing member, where the first securing member is configured to abut against a first portion of an eyepiece of the scope. The mounting system can also include a second securing portion having a second securing member, where the second securing member is configured to abut against a second portion of the eyepiece of the scope. The mounting system can further include an adjustment mechanism that simultaneously moves the first securing portion and the second securing portion in opposing directions relative to each other.