Excellent polarizer!  A must have if shooting water such as lakes, ocean, etc as the glare is almost completely cut.  You will be amazed as you can shoot thru water.  I took pictures in Hawaii where I can see people swimming underwater quite clearly, and the surf froth itself is well highlighted.  In Japan, I shot Koi in rivers and ponds that couldn't otherwise be seen with naked eye or plain lens.  I find that colors such as leaves on trees and rocky mountains are deeper as glare is removed. Phenomenal!

A tip:
Don't twist on your lens too tight and when using only turn in the "tighten" direction so you never have to worry about falling off!

5 stars!  Have fun with this!
Excellent polarizer! A must have if shooting water such as lakes, ocean, etc as the glare is almost completely cut. You will be amazed as you can shoot thru water. I took pictures in Hawaii where I can see people swimming underwater quite clearly, and the surf froth itself is well highlighted. In Japan, I shot Koi in rivers and ponds that couldn't otherwise be seen with naked eye or plain lens. I find that colors such as leaves on trees and rocky mountains are deeper as glare is removed. Phenomenal! A tip:
Don't twist on your lens too tight and when using only turn in the "tighten" direction so you never have to worry about falling off! 5 stars! Have fun with this!