Feature: 1. Premium Material: This diopter is made of premium optical glass material which provides great clarity and transparency, durable for long term use. 2. Special Effect: This split diopter filter can blur the irrelevant scene around the picture, blur the foreground of photography, and focus on the middle of the picture, suitable for shooting people. 3. Rotatable Filter: This filter lens can be rotated to adjust the angle at any time, easy to hold in front of the lens to manipulate the effect. 4. 77mm Lens: This dioptric filter lens fits lenses in the 77mm mount, a cool photography tool that will make your photos stand out. 5. Wide Compatibility: Lenses of different diameters can be converted through the adapter ring, which is not limited by the focus length of the lens, and can be used with any camera. Specification: Item Type: Split Diopter Filter Material: Glass and Aluminum Alloy Gross Weight: 160g / 5.6oz Filter Diameter: Approx.77mm / 3.0in. Package List: 1 x Filter1 x Filter Bag1 x Wiping Cloth