Promaster 43mm IRND16X (1.2) HGX Prime

I was skeptical about IR pollution until I tried this on a sunny landscape shoot—the color cast is virtually gone. The glass feels solid and the dirt-repelling coating actually works; cleaning it is effortless.

Finally, an IRND that doesn't shift colors on my wide-angle shots. The ground glass is noticeably smoother than cheaper filters I've used.

Finally, a filter that doesn't give my shots that weird color cast. The IR suppression is a game-changer for long exposures, and the glass is so clean it feels like nothing's on the lens.