Neewer Foldable 3X Magnification LCD Viewfinder Loupe, Eye-Shutter, 1:1 Standard Viewing, Swivel Screen, Support 3" LCD Screen with Ratio 4:3, compatible for LCD with ratio 3:2, for Nikon D800E D700 D300S D300 D90 D7000 D3100 D3000, CANON 6D 7D 1D MARK IV 5D MARK II III T4i T3i T2i T1i S90 EOS M, Panasonic DMC-GF1, Pentax K-7