Sigma 72mm WR Ceramic Protector Filter

Installed this on my favorite lens and noticed zero difference in sharpness, which is exactly what I wanted. The ceramic material feels incredibly smooth and seems to repel smudges better than my old glass filters.

Ceramic coating is much tougher than standard glass filters, so I don't have to worry about tiny scratches during cleaning. Image sharpness is also perfectly preserved.

I was worried about scratching my lens during a recent dusty shoot, but this filter went on smoothly and hasn't affected sharpness at all. The ceramic build feels much more durable than standard glass, and it wipes clean easily.