Dorr Digiline HD Slim 環形偏光鏡 43mm

The threads on this slim filter rotate smoothly, and it’s genuinely thin—no vignetting even on my wide zoom. Helps cut glare off wet pavement nicely, though I wish the ring had a bit more grip when sweaty.

Used this on a bright day by the lake and the difference in sky and water reflections is immediate. The filter itself screws on smoothly and didn't add any dark corners to my wide shots.

The slim ring design is perfect for my wide-angle lens—no corner darkening at all. It makes sky colors pop while cutting down water reflections, and the build feels solid without being bulky.