Promaster 77mm IRND1000X (3.0) HGX Prime

I was worried about color shifts with such a strong ND, but this filter keeps everything neutral while cutting light beautifully. The dirt-repelling coating is a real bonus for outdoor shoots where dust is everywhere.

The ground and polished glass is noticeably clearer than my old ND filter—no weird color shifts even in harsh midday light. I've been using it for long exposures and the infrared suppression really keeps the blacks true. Works perfectly on my 77mm portraiture setup.

I was worried about color casts with such a strong ND, but the IR suppression keeps the images clean. The ground glass feels precision-made, and it threaded onto my lens without a hint of binding.