Features: 1.Multi Layer Coating: Full surface multi layer broadband coating, internal lens extinction treatment, effectively reduce lens ghosting glare, sharp imaging, good color reproduction. 2.Good 20?40 times magnification, high definition resolution, clear relative illumination, good light transmission effect. 3.Larger Prism: Use a larger prism, make full use of the prism to increase the amount of light, equivalent to F1.8 aperture. 4.Reliable Performance: Larger diameter and high definition lens, frosted lens body, non slip and waterproof metal fixing ring, external tripod. 5.Premium Material: All metal lens body, optical glass coating and BK4 prism combination, the appearance is simple, fashionable. specification:Item Type: 20?40x Zoom Lens with Tripod Material: Optical Glass, Metal, ABS Lens Type: Zoom Lens Field of View: 4.4 Degree to 8.8 Degree Focal Length: More Than 5m / 16.4ft Optical Zoom: 20X-40X Prism Type: Schmidt Roof Prism (K9) Lens Structure: 10 Elements in 6 Groups Lens Structure: M17xP0.75 Lens Coating: Multi Layer Coating Color: As Pictures Shown Weight: Approx. 545g / 19.2oz Applicable Model: Compatible with 98% Smartphones PackageList: 1 x Telephoto Lens 1 x Tripod 1 x Metal Clip 1 x Fixing Ring 1 x Storage Bag 1 x Wiping Cloth 1 x Manual