He uses for his movie making and loves it

I use this on my BMPCC4k and it works great. I do wish I read the description a little better though because this does not get fully clear when twisted. I was looking for something that you could turn and would not be able to tell there is an ND on the camera at all because I was hoping I could just keep it permanently on my lens for indoor shoots too but there is always a very subtle tint on it even at it’s lowest setting. Other than that, it works great for harsh outdoor lighting which I shoot a lot in.

Hardly blown out a photo, with this combination. Pure Dead Brilliant

I'm very happy with my purchase of the K&F 1-5 stop ND filter. I recently purchased and then returned the Neewer ND 2-400 filter for $26. I thought it might not be of the best build quality but I never expected the pictures shot through the filter to be so blurry. I bought it to shoot portraits and the resulting photos where completely unusable. Everything I've shot with my new K&F filter has been usably clear. It cost more than twice as much but still didn't break the bank.

The pictures I've included with this review were both taken with my neewer S101-300W strobe lights.

(Photo f2.8) Head & Shoulder portrait zoomed in on Eye with Filter @ 5 stops on the K&F filter:
• f/2.8, 1/200 sec., ISO-100 shooting with a strobe light.
• Canon 77D w/Canon 70-200 f2.8 @ 80mm
(Photo f10) Head & Shoulder portrait zoomed in on Eye with no filter:
• f/10, 1/160 sec., ISO-100 shooting with a strobe light.
• Canon 77D w/Canon 70-200 f2.8 @ 115mm

The latch on the little round plastic box that came with the filter to protect it doesn't work very well. You have to push the button really hard and kind of use your fingernail to push the button to the side to get it to open. Kind of a pain but the product itself works really well and I'm very happy with it. It came super clean with no smudges or finger prints on the glass.

It is so good and high-quality i loved it

I have been using K&F filters for several years and they perform well for me. I have both round and square filters that I use with my various cameras.

I recently purchased a RF 16mm 2.8 and the RF 50mm 1.8 lenses. These lenses both have 43mm filter threads. I didn't want to purchase nor use such a small filter. So, I purchased a 43x67mm step up ring and I use my 67mm filters. I like this set up. This set-up looks and feels solid on the camera and performs well. I haven't noticed any viginetting caused by using a filter on my 16mm wide angle lens by using the larger filter on a smaller lens.

Overall, I like the Nano-X version of K&F filters. Are K&F filters perfect? Well, they are constructed well and perform reliably and they don't cost hundreds of dollars each...I am happy with my purchase...

Llego en menor tiempo de lo establecido.
Satisfecho con la atención y la compra.

I needed a variable ND filter for my mirrorless camera rig. I use it for both photography and videography. Most of my lenses are 77mm, but I also have one that is 82mm. A good tip is to buy the largest size you need (or think you might need), and use a step up ring for your small thread size lenses. I have not had a problem with an "x" pattern in use (as advertised) which can be an issue with some lesser ND filters. With this filter, I'm set for bright days, Norway and Alaska, or filming video indoors with changing lighting. Highly recommended.

This filter is the perfect daily shooter and there is no cross pattern filtering at all! It has little notifiers on the side to display what step you are at. Amazing filter!

I bought a different version (MFT ) before, and because I really loved the nd filter, I decided to buy another one for my full frame camera. Really good quality.