Nisi ND 1.2（4段）フルスペクトラム – ドロップインフィルター

The 4-stop reduction is spot-on for shooting wide open in bright daylight, and the drop-in design means I never touch the front lens element. It slots into the Athena system effortlessly and feels solid once locked in.

Installing this drop-in filter behind the lens took seconds, and the 4-stop reduction in light is exactly what I needed for wider apertures in bright sun. The colors stayed neutral, which is a huge plus for my landscape work—no weird color cast to fix later.

Finally, no more fiddling with screw-on NDs on the matte box. I got perfectly neutral color even at 4 stops, and the drop-in made swapping filters during a shoot a breeze.