High-Performance Conversion Lens Series "Real Pro Cinematic" for Smartphones High-Performance 2x Telephoto Lens ■ Large-aperture conversion lens ideal for 4K video shooting. Low distortion and high resolution from the center to the periphery achieved by a new optical system. ■ Safe and secure attachment and detachment. Newly developed lens mount attachment that also supports the shape of dual camera lenses. ■ Design that is less likely to cause optical axis misalignment due to aluminum alloy cutting and screw mount adoption. Model Number: KRP-CT4K2X JAN Code: 4961607797815 Angle of View: 43° Optical Glass: Optical glass Optical Construction: 4 groups 5 elements Coating: Multi-coating Body Material: Aluminum alloy Mount: Screw-in M17 1.0 Filter Diameter: 37mm Size: 41 x 58 x 55mm (when attached to the attachment) Weight: 87g (when attached to the attachment) Package Contents: Lens, mount attachment, pouch, cleaning cloth, manual, front cap