K&F 49mm UV濾鏡 – 經典超薄藍色多層鍍膜

I was worried a slim filter might be hard to screw on, but this one threads perfectly smooth every time. The Japanese glass is noticeably clear and hasn't affected my image sharpness at all.

The blue multi-coating really does cut reflections nicely on my shots, and the glass feels solid when I screw it on. Only minor gripe is that it's a touch hard to get the threads perfectly aligned sometimes, but once it's on, it stays put.

Slim enough that it barely adds any weight to the front of my lens, and the Japan-imported glass feels solid while threading on smoothly. The blue multi-coat does seem to handle reflections well, though I haven't noticed a huge difference in contrast compared to a plain filter. Still, it's doing its