ASHANKS 5D3 5D2 SLR 3 inch 3.2 inch flip LCD screen 3 magnification viewfinder goggles for Canon for Nikon As QV1 Canon 500D 550D 600D 650D 700D 60D 70D 5D MarkII 5D MarkIII 6D 7D Nikon D90 D7000 D7 Supports universal design fits lcd screen 3.0'' /3.2", compatible with 4:3 or 3:2 ratio LCD Screen 3.0x Magnification, with 3 plece of lens , transmittance 90% diopter  3 lens aperture 40mm 3X optical magnification helps observe fine details.Well sealed hood blocks out the light while magnifying the frame for accurate color and focusing Use rotary knob on both sides to adjust up and down, more convenient and beautiful than original bottom hex adjustment Rotatable and removable comfortable eye-cup