NiSi S6 ALPHA 150mm 濾鏡支架與收納盒（適用Canon TS-E 17mm f/4L）

Took this filter holder on a weekend trip to shoot architecture with my 17mm, and there’s zero vignetting even at the widest end—the ultra-wide compatibility is spot on. The included case keeps everything organized and protected in my bag.

I was skeptical about spending this much on a filter holder, but the case that comes with it is surprisingly sturdy for travel. The way it securely holds the filters without any light leak is a huge relief during long exposure shoots.

Finally a holder that doesn't vignette on my 17mm—the 150mm size is a game changer for ultra-wides. The case is snug and protective, so I can toss it in my bag without worrying about the glass.