B+W 超薄清晰UV保護鏡 單層鍍膜 (010)

The brass ring threads on so smoothly I almost didn't believe it was a filter at first. No sign of vignetting even on my wide-angle lens.

Screwed it onto my 77mm lens and the brass ring threads felt silky smooth right out of the box. The single coating cuts glare on sunny days without washing out colors, and the slim profile means no dark corners even at 16mm.

I was worried about vignetting on my wide-angle, but the thinner mount fits perfectly with no dark corners. The single-coated glass keeps things sharp without adding any weird color cast. It's a solid filter for everyday use.