RainbowImaging High Qulaity LARGE EYECUP & Eyepiece Extender replaces Canon Eyecup EF & Eyepiece Extender EP-EX15 The package includes 2 items: 1) EC-1 Eyecup & 2) EC-2 Eyepiece Extender EC-1 is custom designed soft-touch Eyecup to provide Cushioning around the camera's eyepiece EC-2 Eyepiece Extender Extends the eyepiece by 5/8" (15mm) from the camera body, it reduces viewfinder magnification by 30%. Replacement For Canon EP-EX15 Block out unwanted light from your viewfinder Supply by RAINBOWIMAGING