It offers multiple functions: it tones the objective of the parasitic light, it improves the contrast and the quality of the image when the weather is bad, it helps that the humidity and the remains transported for the wind do not come in contact with the objective, it protects the frontal for Canon of unavoidable impacts against walls, door frames and other obstacles of day to dayCompatible with: Nikon and for Canon standard lensesBrand new and high quality, this product is your best choice.Material: aluminumColor: BlackDiameter of the thread mount: 52 mmDimensions: 6.2 x 6.2 x 2.6 cmPackage Includes: 1 x lens hoodOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.