Canon EF
Nikon F
Specs:
Full-Frame Lenses to APS-C Format Camera
Increases Aperture by 1 f/Stop
Increases Angle of View by 0.71x
Manual Aperture Ring
8 Aperture Stops in 1/2-Stop Increments
Removable Tripod Foot and 1/4"-20 Socket
Matte Black Interior; Metal Construction