Promaster 6313 105mm IRND1000X HGX プライムフィルター

Finally, a filter that doesn't mess with my color balance—the IR suppression makes a noticeable difference in long exposures. The glass feels incredibly solid and well-crafted, and it's easy to clean when dust gets on it.

The ground and polished glass on this filter is noticeably smoother than my cheaper ones, and I've seen zero infrared color cast in my long exposures. It's solidly built and easy to clean, which makes it a staple in my bag for daytime waterfall shots.

I was worried about color shift with long exposures, but the IR suppression keeps everything neutral even at 16 stops. The glass is flawlessly polished, and it threads onto my lens without any binding.