Voigtlander 21/25mm Metal Black Viewfinder

This 21/25mm metal silver viewfinder from Voigtlander provides a shoe-mounted viewfinder solution for lenses with a 21mm and 25mm focal lengths. This finder slips into the camera's accessory shoe, and provides a view for accurately composing photographs with a 21mm or 25mm lens. This sturdy metal viewfinder has 4 lenses in 4 groups, with 0.42x magnification, a 93% field of view, and a -1 dioptre