K&F Concept 62mm Variable ND2-ND400 ND Lens Filter (1-9 Stops) for Camera Lens, Adjustable Neutral Density Filter with Microfiber Cleaning Cloth

I use this with good quality step rings so I can hot swap it through prime lenses. Saves buying all different sizes. Make sure you get good quality step rings though or you will have permanent additions to your filter...Very good quality ND. Like it says, no 'X' cross at any setting. Smooth to adjust but stays in place at the ND you want. Colours are consistent. Stays in my bag at all times.

Good

Bought it but it's not much helpful for me as a videographer.i am using it on sony a7s3. It 10 stop I mean kind of very dark and there a vintage in left upper portion even I dropped to f1.8 iso640 and 1/100 still. And it's very annoying when you facing towards sun completely balck the vintage is allover. Won't recommend it. Or maybe I don't understand this product use.if I am wrong I will change my review.i tried it it's very dark and I will try now 6 tops nd filter