A viewfinder comprising a display device which comprises a surface including a display portion and a peripheral portion, a lens and a housing is provided. In an orthogonal projection with respect to the surface, the housing comprises an overlap portion and a shielding portion that overlap at least a part of the peripheral portion, respectively. A distance between the peripheral portion and the shielding portion is larger than a distance between the peripheral portion and the overlap portion. A light beam emitted from an end of the display portion which has an angle less than a predetermined angle from a normal of the surface enters the lens, and a light beam emitted from the end which has an angle not less than the predetermined angle from the normal of the surface and is reflected by the overlap portion enters the shielding portion.

A viewfinder comprising a display device which comprises a surface including a display portion and a peripheral portion, a lens and a housing is provided. In an orthogonal projection with respect to the surface, the housing comprises an overlap portion and a shielding portion that overlap at least a part of the peripheral portion, respectively. A distance between the peripheral portion and the shielding portion is larger than a distance between the peripheral portion and the overlap portion. A light beam emitted from an end of the display portion which has an angle less than a predetermined angle from a normal of the surface enters the lens, and a light beam emitted from the end which has an angle not less than the predetermined angle from the normal of the surface and is reflected by the overlap portion enters the shielding portion.

There are provided an adapter for an electronic view finder, a camera, and an electronic view finder of which user's imaging operability can be improved, a space can be saved during carry, and the size of the camera can be reduced for a user who does not need the function of a retrofit electronic view finder. An adapter 16 for an electronic view finder includes a base member 102 that includes an accessory shoe-mounting portion 54 to be attachably and detachably mounted on an accessory shoe 20, a first connector 64 that is to be attachably and detachably connected to an output-side connector 56 provided on the accessory shoe 20, a tilting member 104, an accessory shoe 106 that is provided on the tilting member 104, and a second connector 108 that is to be attachably and detachably connected to an input-side connector 110 for an image signal for a finder provided on an electronic view finder 14 and is electrically connected to the first connector 64.

A digital camera with which a captured image can be easily recognized through an electronic viewfinder regardless of whether the digital camera is oriented vertically or horizontally. A camera having an imaging lens, an electronic viewfinder to observe the image captured by the imaging lens, a guide mechanism guiding the vertical movement of the electronic viewfinder, and a biaxial rotation mechanism capable of causing the electronic viewfinder to rotate according to the vertical screen position or the horizontal screen position. The biaxial rotation mechanism is provided with a linking part linking the electronic viewfinder and the guide mechanism; a first shaft part for supporting the electronic viewfinder on the linking part so as to rotate in a first direction; and a second shaft part supporting the linking part on the guide mechanism so as to rotate in a second direction.

There are provided an adapter for an electronic view finder, a camera, and an electronic view finder of which user's imaging operability can be improved, a space can be saved during carry, and the size of the camera can be reduced for a user who does not need the function of a retrofit electronic view finder. An adapter 16 for an electronic view finder includes a base member 102 that includes an accessory shoe-mounting portion 54 to be attachably and detachably mounted on an accessory shoe 20, a first connector 64 that is to be attachably and detachably connected to an output-side connector 56 provided on the accessory shoe 20, a tilting member 104, an accessory shoe 106 that is provided on the tilting member 104, and a second connector 108 that is to be attachably and detachably connected to an input-side connector 110 for an image signal for a finder provided on an electronic view finder 14 and is electrically connected to the first connector 64.

[Problem] Provided is a digital camera with which a captured image can be easily recognized through an electronic viewfinder regardless of whether the digital camera is oriented vertically or horizontally. [Solution] The digital camera 1 is provided with a camera body 2 having an imaging lens 2a, an electronic viewfinder 3 for a user to observe the image captured by the imaging lens 2a, a guide mechanism 5 for guiding the vertical movement of the electronic viewfinder 3, and a biaxial rotation mechanism 6 capable of causing the electronic viewfinder 3 to rotate according to the vertical screen position or the lateral screen position. The biaxial rotation mechanism 6 is provided with: a linking part 61 for linking the electronic viewfinder 3 and the guide mechanism 5; a first shaft part 62 for supporting the electronic viewfinder 3 on the linking part 61 so as to be capable of rotating in a first direction; and a second shaft part 63 for supporting the linking part 61 on the guide mechanism 5 so as to be capable of rotating in a second direction.

A finder optical system includes a display element, and an ocular optical system disposed on an eyepoint side with respect to the display element. One or more diffraction elements are disposed in the finder optical system. At least one of the diffraction elements is a first diffraction element including a liquid crystal diffraction element. In a case where a distance on an optical axis from a display surface of the display element to a surface of the finder optical system closest to the eyepoint side is denoted by TL, and a distance on the optical axis from the display surface of the display element to an optical surface of the first diffraction element is denoted by X1, the finder optical system satisfies a conditional expression represented by 0.05X1/TL1.