I recently "moved into" a new camera system, and the largest filters I had, 77mm, don't work in many of the lenses, which use 82mm. So, I'm having to re-filter for these new lenses. My work with this camera is mainly landscape, and along with a good polarizer, ND filters are where I tend to go.

I wrote an earlier review, comparing these to some top-line filters I have (but in smaller sizes)—but that review was rejected, and the only reason I can think is that I mentioned specific brands—so I won't try that again. Basically, from my tests, which only looked at how even the light transmission was and how neutral the longer exposures looked by eye, these K&F Concept filters are as good as you could ask for.

Looking at multi-coatings and reflections, the exterior of these filters was on par, if not better, than the high priced filters. That said, the rear (interior) surface on the more expensive filters was much less reflective (than even the fronts were!) whereas on the K&F filters the front and backs are about the same, in terms of lessening of reflections.

The filters come in a very nice case. I'd be happier with it if it was maybe a bit less padded—my bags always seem crammed. For me, the main difference between these and the top line filters are the rings. All three rings threaded on smoothly. No complaints. But if you're used to the way that nicely machined brass rings screw on, you'll know what I mean. I'm quite happy with these.