Visor óptico de 40 mm para cámara visor de nivel de cintura de metal visor

Bright Optical Waist Viewfinder. Available for 40mm. It is bright, not like the antique ones which would be hard to supervise the view. The image of Waist Level Viewfinders is reversed left-to-right (one of the waist level viewfinders' features).

eBay