The background blur effect can be seen through the Smooni 18X 4K ultra HD extrenal camera lens which is similar to the DSLR lens which has the same telephoto lens which gives us identicalro lens and wide angle lens affects Multifunctional Lenses: 18X telephoto lens for distant photos, allows you to photograph a subject that is far away without compromising image quality; Wide-angle lens that instantly expands the field of view, enjoy the art of photography through a much wider perspective Lightweight, foldable, compact, active track 3.0, 3 Axis mirrorless powerful stabilizer Intuitive and user-friendly controls for shutter and focus are also available for most camera brands This item comes with 1 Year Replacement Warranty All Over India. Successful Warranty Claims under the policy will be covered with a replacement of a new product unit.