Prolite 2.8X DSLR LCD Screen Viewfinder for Canon EOS 1D Mark IV, 5D Mark II, 7D & T1i, Nikon D90, D300S & D3, Pentax K-7 Digital SLR Cameras 2.8X LCD Screen Viewfinder for Canon EOS 1D Mark IV, 5D Mark II, 7D & T1i, Nikon D90 D300S & D3, Pentax K-7 Digital SLR Cameras