Hasselblad Frame Viewfinder for 500C/M 501CM 500EL 2000FC 1000F 503CX 500C etc.
This viewfinder outlines the field of view for lenses with 150mm and 250mm focal length when use in conjunction with the Hasselblad 500 and 2000 series and magazines A12, C12, A24, C24 or C70, A70. For lens shades 80, 110 and 100-250.