Customers most agreed on the following attributes:
I purchased this filter for a Canon EF 24-105mm f/4L IS USM Zoom Lens. I wanted a filter that would not deter from the lens optics in any way (vignetting, flaring, ghosting and etc.). The Hoya PRO UV filter fits the requirement perfectly.
Using it for my Canon EF-S 10-22mm Lens,
The Filter is Ultra thin (only 3 mm) and Very Strong
The Hoya Pro 1 DMC filters provide great protection without flare or ghosting.
The treatment on the lens is easily compromised using standard lens cleaning spray. Use only microfiber on this lens.
Excellent optics and very thin mount just as it was stated. Quality is excellent.