Hoodman HoodEYE Nikon 22mm Square for the rest of Nikon SLR line
Price: £22.99 from Wex Photographic
Hoodman HoodEYE Nikon 22mm Round for D3, D2X, D4, D810
Hoodman HoodEYE Canon 22mm for all 1D, 1Ds II & III, 7D, 5DIII
Hoodman Hoodeye for Sony A7 models A7, A7R, A7S A7II