It is large enough for you to see through the viewfinder perfectly with your eyeglasses on. The rubber is soft so it doesn't bother or scratch your glasses. It really shuts out all outside light. It is a marvelous product!
Verified purchase: Yes | Condition: New
It works as advertised to eliminate unwanted light from entering the viewfinder. Works perfectly with or without eyeglasses with my model.
Verified purchase: Yes | Condition: New
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