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 Filter 1 x Filter Bag 1 x Wiping Cloth 1Premium Material: This diopter is made of premium optical glass material which provides great clarity and transparency, durable for long term use. 2Special 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. 3Rotatable 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. 477mm Lens: This dioptric filter lens fits lenses in the 77mm mount, a cool photography tool that will make your photos stand out. 5Wide 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.