Fotodiox Pro WonderPana Go 中性密度 +32（5級減光）濾鏡 - 適用於 GoTough 濾鏡轉接系統的濾鏡

The 5-stop reduction is spot-on for dragging clouds into smooth streaks, and it clicked onto the GoTough adapter without any fuss. Paired it with a tripod and the slow shutter mode handled car light trails like a champ.

Finally got that silky waterfall shot I’ve been after. The adapter clicks onto the GoTough housing solidly, and the 5-stop really cuts the light enough for a two-second exposure even in bright midday sun.

Finally got that silky smooth motion blur on clouds that I could never pull off before. The 5-stop cut is strong enough for bright afternoon skies, though you'll want a tripod since shutter speeds get slow. Glass looks clean with no color cast.