a small disclaimer: I'm not an ND1000 filter person, I find their water/cloud smoothing effect mostly unnecessary and overdone, overused and overhyped (and many more overs). having said that every once in a while I need something more than ND64 so I decided to give this KF a shot, especially as it came at 40 EUR with Black Friday discount.

I didn't expect wonders and was prepared for heavy color casts. it turned out to be better than I expected. there is obvious color cast with this filter (photo 1) and to all the claims of "I see no cast" I can only reply: turn the AWB off, please, how can you discuss color casts otherwise, seriously?! but with WB adjustment it corrects (photo 2) very close to original colors without this ND1000 (photo 3). scale of correction: 5000K->7200K and 0->

sharpness for wide angle lens (35mm) is perfectly OK, as expected. I do notice heavier vignetting (both lenses have same degree of lens correction) which I'm not sure how to explain but I personally don't mind some in landscape shots.

Overall, I'm pretty happy. it's an inexpensive alternative to brands already known for heavy blue casts (I love your ND grads, Lee, but your Big Stopper is plain and simply a blue filter, period) and for casual usage you can't really expect more