Excerpt: The Hoya HD2 Protector is an amazing filter. I have used these on my lenses since the Hoya HD filters and the quality has not changed. They have multiple anti-glare coatings to keep sun flare really minimal and they use really hard glass so scratches and breaks are very rare.
Excerpt: Easy to attach, easy to clean, easy to use. Can't say enough about how nice Hoya's filters are for protecting my valuable lenses. If you buy a lens, buy a filter to protect it, and if you buy a filter, buy Hoya. You won't regret it.
Excerpt: I have used lower-cost protection filters in the past, but often find them difficult to clean and many are susceptible to damage, even with careful treatment. The HD coating is hydrophobic, which means that you can often simply blow off water beads with a quick puff.