This filter is amazing. you can spin it while on the camera and it darkens or lightens the filter for your camera lense. I used in on my Canon Rebel XTi. And had no troubles. Really easy to use.
I was able to photograph the solar eclipse with this lense on its darkest setting and it did AMAZING. As an amature photographer I was able to capture some incredible images. I am so glad that I purchased this filter. i am highly impressed with its ability to filter light to my desires with a just a simple turn.

Filter works great. Yes it gives an "X" image, but only if you go past MAX, which you shouldn't be doing anyway. True neutral gray, does not affect image or color quality. Solid construction. A good filter to have on hand.

This filter definitely works as advertised. I researched exhaustively and checked many reviews before purchasing.
Comes in a nice plastic box with some foam cushioning; I added a layer of thin foam in there to keep it from moving around in my bag.
I'm in Florida - took this outside mid-morning, full noon and afternoon, and on an overcast day. Outstanding results, including with flash. On sunniest days I did not crank it up to the maximum setting, just below, and still got great results for both stills and video.
Shooting on a a Canon 6DMII, got three lenses that'll take this 52mm.
Not a 'pro' but half of my income comes from photography and video.
Would definitely recommend this filter - I feel kind of dumb not having gotten it years ago, could have saved many shots.
I found this after seeing the versatility of a variable ND demonstrated in a video, realized I must be missing something. When I looked up that item I was astounded to see that the low-end for that series prices about $250/$300. If you're making museum or some kind of major publishing landscape images you probably don't think twice about that, and I'm certain those pieces are quality. However, if you're reading this then you've already come across a couple of childish and self-important remarks about how this item doesn't compare to 'pro' or 'real' filters. You're on Amazon here - this thing works, give it a try.
Finally - have seen a string of reviews with tantrum-like rants insisting that this filter doesn't work and puts an 'X' on the image.
I'm guessing that's true ... because in the little page that comes with the filter (and the description online) it's clearly stated that turning the filter up to it's highest setting will create this artifact, so they kind of advise you not to do that.
Also, if you cross the street on a red light, you will likely get run over.
It's working for me!

I ordered this lens because my regular supplier was out of the 67mm size. I am very happy with this filter. It functions the same as my other filter, appears to be very well made, and I haven't noticed any aberration in the final result. I am using this on a Canon 100mm macro.

I took some long exposure photos of waterfalls in the middle of the afternoon and got beautiful results. I'm no professional, but to me, there was no noticeable color cast. I love it, and I'm going to order one that will fit my other lens, too.

Follow the instructions and look at your lens to make sure that you are getting the right size. This will not fit on your current lens if you have a UV filter on there already.
That being said, it works great for shooting in the middle of the day but needing to control the incoming light. I love this filter.

Although I love the slim design I really do not like that my lens cap does not always fit this variable ND filter. If it did I would never take this off my lenses

This filter is the bomb! I use it in broad daylight to slow down shutter for that cinematic look. My videos have been coming out nice as of lately. This is actually my second time purchasing this same filter for a different camera. Highly recommended for those who want to master their camera & shoot only in manual...

Love this

Very good