To provide a reverse-Galilean finder enabling a user to easily peep into a finder image without deviating the range of a visual field.

Since a reverse-Galilean finder device 33 constituted of an objective lens 31 having negative refractive power and an eyepiece lens 32 having positive refractive power is covered with a front cover 5 provided with a finder objective aperture 5b arranged in the front of the objective lens 31 and a rear cover 6 provided with a finder eyepiece aperture 6c arranged on the back of the eyepiece lens 32, a user can observe the finder image through the aperture 6c. The aperture 5b determines the range 38 of the visual field and the aperture 6c is formed as size larger than the range 38. A target mark 36 is formed on the lens 31 and a micro-lens 37 having positive refractive power to observe the target mark 36 is formed on the lens 32.