C-PL (Circular Polarizer) Multicoated | Multithreaded Glass Filter (62mm) For Tamron 18-270mm f/3.5-6.3 Di-II VC PZD Between 2.3 and 2.8 (approx. +1.3 stops) Rugged Metal Filter Ring (Black Finish) | Heat Treated Glass Slim Design Minimizes Vignetting Multicoated Designed For Video Or Photography | Multithreaded For Mouning Lenses Or Filters On Top