Canon Eyepiece Extender for Digital SLR Cameras - #EPEX15. Click here for compatibility.

Compatible with the following Canon D-SLR cameras:
EOS-1D Mark II / 1D Mark II N / 1Ds / 1Ds Mark I / 1Ds Mark II / 1Ds Mark III / 1V / 1VHS / 3 / 5D / 5D Mark II / 10D / 20D / 30D / 30V / 33V / 40D / 50D / 300V / 300X / 350D / 400D / 3000N / 3000V