Fotodiox Pro 6.6x8.5" トワイライトエフェクトグラデーション2色（青→ピンク→透明）NDフィルター0.6（Grad-ND4、2ストップ）ソフトエッジフィルター（WonderPana 66 & FreeArcシステム対応）

I was a little worried the blue-to-pink gradient would look too gimmicky, but on a hazy sunset it actually gave my sky a subtle, natural glow. The soft edge made the transition feel smooth across the frame, and the 2-stop reduction kept the foreground properly exposed.

The soft-edge transition on this one is the standout—it blends from that blue top down through the pink horizon so smoothly that you can't spot where the tint ends. I've used it on a few coastal shoots and the two-stop density holds the sky perfectly without making the foreground look muddy.

Shot a sunrise over a lake and that blue-to-pink fade into clear gave the sky exactly the dreamy gradient I wanted, no weird color banding at all. The soft edge makes the transition look seamless even with a wide lens, and it stacked fine in the holder without any vignetting.