Nice filter. Tested on a Canon 24-105 L lens. Lens cap fits fine, but the hood is a no go-either before or after applying the filter. Easy to use, good damping on the adjustments, stay where you put them, threaded on as good or better than any filter I've used. Biggest issue for me is having this with me when I need it. I expect this was designed by a waterfall guy. Can’t wait to try it when the weather breaks and I can finally get out to one. I had the best experience using a CPL when I was at Yosemite. Don't go there without one. This combo will be just the ticket when I return.

I am not sure where all the negative one star reviews came from.The bag holds my 5D Mrk 4 and three lens in the upper compartment... two of the three lens are huge f2.8.The bottom compartment (with included fanny pack removed) would hold my back up camera with three smaller lens. Now it holds ALL of my close up gear, including a cheap 4x5 led video light, a external 4x5 monitor in case, extension rings and a focus rail slider. I did not try the laptop compartment, but all my accessory equipment, filters, batteries and cards fit in their own pockets.Quality seems what you would expect from the price. ... Its not gold plated BUT I believe it will hold together.

The filter comes safely and neatly packed and with the 58mm thread it fits perfectly on the Canon lens of my SLR camera.
The photos get a slight blur from the filter, which usually makes them look a bit warmer. If you only need part of a photo or want to enlarge a section, you will have to unscrew the filter beforehand.
All in all, and especially when there is backlight, the 1/4 filter is a small addition that also reliably protects the lens of the lens. I wouldn't consider it a must-have, but for those special moments the filter is definitely worth the money.

I am very happy with the lens. For the price it's a great device. But the auto focus sucks, so 1 star less.

Everything perfect

Perfect for my Canon EF-M 22mm, the Canon lens cap fits the filter perfectly, I wasn't expecting it!

This is a really nice filter that is definitely worth getting, especially if you don't have an ND filter yet. I use it on the standard lens that came with my Canon M50, and it's a lot of fun to play with. The lens itself looks and feels high quality and is easy to adjust. The case that comes with it is nice, but quite large.

Quality is good. The only thing that bothers me is that the cap of my Canon lens does not stay on the filter.