Made of high index optical glass elements that produce rich and razor-sharp images. Achieves maximum macro magnification power when set at the most telephoto position of a zoom lens | Lens Optic Pen Cleaner: A simple lens-cleaning system Removes, fingerprints, dust, and other debris that may compromise your image | Snap-on universal mount for 52mm to 67mm filter size: 52mm 55mm 58mm 62mm 67mm etc. | 49mm front filter threading. 43mm rear threading for mounting directly to your camera lens (.75mm pitch) | Max focal length: 67.0