The eyecup is a great addition to any studio. Having one on your camera makes the viewfinder readout easy to see even on a bright and sunny day. Camera eyecups provide cushioning around the camera's eyepiece, and are especially useful to eyeglass wearers. 
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<br />- Compatible with Canon, Nikon, Sony, and possibly other SLR/DSLR cameras
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<br />                                                                            Dimensions: 2.28 in x 1.57 in x 0.98 in
<br />Weight: 0.99 oz                        
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