NiSi 100x150mm Nano IR 中段階グラデーション減光フィルター ND16（1.2）4ストップ

The nano coating works exactly as described; water just beads right off the glass. I was worried about color shifts, but the blacks stayed clean and neutral in my coastal landscapes.

Took this out for a sunrise shoot and was surprised at how smooth the transition is from dark to clear. The nano coating really did repel morning dew without me having to wipe it.

I used this filter during a bright midday shoot by the coast, and it cut the harsh reflection off the water without shifting the colors at all—the 4-stop gradation is exactly what I needed for balanced skies and foreground.