An in-finder display device includes an optical member having prisms and disposed about a position where an objective unit forms an image; an image-inverting unit receiving light from the optical member; an eyepiece unit for guiding the light from the image-inverting unit to an observer; a light source; and an illuminating unit for guiding light from the light source to the prisms. The distributed processing system includes a first and a second computer coupled to a communication medium. A combination of rotation of the second yoke member and pivoting of the anchor member allows the anchor to be positioned in a wide variety of orientations with respect to the yoke device and elongate member.