- Blocks out light for a brighter viewfinder
- The rear opening is 21mm (about ¾"). The larger opening is 39mm (about 1.5")
Use this Eye Cup to cut out light from entering the viewfinder for a brighter image. This round eyecup fits most cameras with a round eyepiece on the viewfinder of the camera. Designed to keep light from entering the viewfinder and altering exposures. Also designed for comfort as well. The rear opening (the smaller one) is 21mm (about 3/4 inch) and the larger opening is 39 mm (about 1.5 inches.