B+W Grad ND Filter

The brass F-Pro mount threads on smoothly and hasn't gotten stuck yet, which is a relief. The glass itself is crystal clear and the neutral gray tint doesn't shift colors in my shots.

The brass ring on this filter threads on smoothly without any binding, which makes swapping it out on location much less frustrating. I've also noticed zero color cast in my long exposures, just pure neutral density as advertised.

The brass mount threads on smoothly and feels far more solid than the plastic-ringed filters I've used before, and the glass itself is perfectly clear with no tint I can detect. Shot a whole sunset sequence with it and the neutral gray kept every frame consistent, even as the light shifted.