We’re working on getting the full line of Hoya’s new HD filters up. But, Derek, you ask, what are HD filters? Well, Hoya’s High Definition filters are made from the best quality optical glass and then specially coated, ending in a product that promises to be 4 times harder than regular ol’ optical glass and have a super-fine finish for easy cleaning. Popular Photography claims the coating is so good they wrote on one with markers and wiped it right off.

We’ve got a Raw Footage from Mike who briefly discusses the line below:

And, if you’re curious about that durability claim, I dug up these videos originally from Hoya’s site. The first one shows what happens when you throw a steel ball bearing at a regular filter. The second shows the same test with an HD filter.

Now, personally, I’m a fan of any product that’s been rigorously tested by throwing balls of metal at it, I have to confess. Find one for yourself over here.