Applicable models:
D5200, D5100, D3100, D3000, D70S, D70, D60, D50, D40X, D40
■The role of eye mask■
The eyecup is mainly used to prevent light from entering the eyecup during long-term B-bulb exposure, and is an essential small part for taking pictures; it can also prevent the eyecup from scratching when the camera is not used; and prevent debris from entering the viewfinder when the camera is stored.
■How to use the eye mask ■
Remove the rubber eyecup before use, and then insert the eyecup into the card slot outside the viewfinder.![](https://img.alicdn.com/imgextra/i4/1047775531/TB2KCH8k8cHL1JjSZFBXXaiGXXa_!!1047775531.jpg)
![](https://img.alicdn.com/imgextra/i1/1047775531/TB2EcWAeVXXXXXcXXXXXXXXXXXX_!!1047775531.jpg)
![](https://img.alicdn.com/imgextra/i2/1047775531/TB21LObeVXXXXX9XpXXXXXXXXXX_!!1047775531.jpg)
![](https://img.alicdn.com/imgextra/i1/1047775531/T2qXsGXXxbXXXXXXXX_!!1047775531.jpg)
![](https://img.alicdn.com/imgextra/i4/1047775531/T2uoZIXbJbXXXXXXXX_!!1047775531.jpg)