To enable photographing without looking into a finder of a camera each time by wearing the device and using a field of view in a visual line direction as the finder of the camera and further to observe a video while moving by wearing the device and hooking a pair of capsules with built-in video display which displays a video image, on the front surfaces of both eyes.

A field of view in the front directions of both eyes always becomes a photographic object by hooking a photographic lens from a digital camera casing provided on an upper part of a lens of the optical system device and using the field of view in the front directions of both eyes as a video image of the finder. In addition, when a magnifying lens and a small video display are built in darkroom capsules with windows for covering a part of the lens of the device, the pair of capsules are hooked on the front surfaces of both eyes from an upper part of the device and the inside is looked into through the window, the video image displayed on the video display is observed by magnifying it and the video image is used for distance correction of the eyes or the finder of the camera.