Dorr PRO-LUX Protect Filter 55mm

Took it out in light drizzle yesterday and the ultra-clear glass stayed spotless while my lens underneath never got a drop on it. The 55mm threads fit snugly with no wobble, and I honestly can't tell it's even attached when I look through the viewfinder.

Screwed it onto my 55mm lens and forgot it was even there, the image quality stayed perfectly sharp. The filter ring threads smoothly and it's already saved my front element from a dusty hike.

The ultra-clear glass really does seem to let in all the light without any weird color shift, which I was worried about. It’s been perfect for keeping dust off the lens during a recent trip to the beach. I only wish the threading was just a tiny bit smoother to screw on.