This Viewfinder for 15mm Lens (Black Metal) from Voigtlander provides a shoe-mounted viewfinder solution for lenses with a 15mm focal length. This finder slips into the camera's accessory shoe, and provides a view for accurately composing photographs with a 15mm lens. This sturdy metal viewfinder has 5 lenses in 5 groups, with 0.31x magnification.
Shoe-mounted viewfinder for 15 mm lens