NiSi ATHENA Full Spectrum FS ND 1.2（4級）後置PL濾鏡（適用於ATHENA PL接環鏡頭）

I was skeptical about rear-mounted filters, but this one fits perfectly into the ATHENA PL mount and gives a clean, neutral 4-stop cut without any color shift.

Cuts down the harsh midday sun just enough without adding that weird color cast I've seen with other NDs. The stop rings are spaced perfectly so I can dial in exactly 4 stops without guessing.

Swapping filters on set is already fiddly, so having this ND mounted behind the lens is a real time-saver—the 1.2 density gives exactly four stops for wide-open exteriors. My only minor gripe is that the rear mount can be a bit snug on first install, but once it's on, it feels secure and doesn't shi