Canon EYECUP ER-I

Finally, an eyecup that doesn't dig into my brow bone while I'm framing shots; the silicone rubber is just pliable enough to be comfortable. It stays put even when I'm moving quickly between subjects.

I usually wear glasses when shooting, so the ER-i’s soft silicone cushion lets me press my eye right against the viewfinder without any hard plastic digging in. It fits perfectly on my camera’s eyepiece and makes long shooting sessions a lot more comfortable.

The silicone rubber is much softer than the rubber eyecups I've used before, which makes long shooting sessions far more comfortable. It stays firmly in place too, even when I'm wearing glasses.