Universal Lens Filter for ~70mm aperture lens, camera, scope View and photograph safely! Transmission: 1/1000 OF 1% Uses ISO: 12312-2 approved SOLARLITE Film (100% safe for direct solar viewing) Use over any camera lens Safe on spotting scopes Works on telescopes Affordably priced Spring-folded shape holds on For Lenses, Binoculars and telescopes of 70mm aperture. Fits over outside diameters of 65-89 millimeters