I tested the K&F Concept filters on a Canon EOS 5D Mark III with a Canon lens.
I am very satisfied.

The filters are very well made. They are delivered well packaged. It is also practical that you get them right away in a well-padded bag and can thus store them well protected in the photo backpack. So the filters can also get no scratches and you always have the filters of one size together.

Also supplied is a cleaning brush.

The filters are absolutely accurate fit. This is not self-evident for filters of this price category.
I received the filters on a test basis which has no influence on my rating.

Original photos

Its perfect for my Canon EOS M6 mark II with the 22mm lens and the Canonb EOS RP with the 35mm lens ... I was amazed from the quality and the compact size ...

Am using Canon 6d mark 2 with a heavy 70-200 mm lens and it works well for me!The tripod has good build quality, is very steady even for heavy equipment , is lightweight, folds up very small, easy/fast setting up and comes with a nice carrying case. Good deal for the price!

Recently bought Canon Mark 4 which is a little bit over 3 lb (1800 grams to be exact) I was using some old Sunpak tripod which broke, so I was looking for a good replacement that can handle the height of my camera.So far I am really happy with this tripod. Looks strong, legs are sturdy. Whole construction is made from quality materials without any cheap plastic on it and is not ultra-heavy nor super light. Really compact when in folded position and has carry bag which also seems like its made from quality material. Love the design and the orange color here and there. I am using K&F Concept ND filters so overall and I'm really satisfied with the company's products. The quick release plate has a bit weird mechanism for removing which takes few extra seconds,but not a big deal in general.Great tripod for the price you pay for which I totally recommend

I ordered this filter for my Canon M50 Mark II lens and it fits like a glove. The material of the filter is metal and robust. The coating on the lens ensures more realistic colors. I recommend it as an addition to your camera equipment.

I use this adapter on my Canon M50 Mark II and am satisfied. The old EF-L/S lenses can be used with it. That makes you want to keep using the old old lenses. The autofocus works without problems. Only the adapter is mostly made of plastic, but this has not affected the functionality so far.

Works well on my Canon M6 Mark II mirrorless. Would have given 5 stars except the mounting lock doesn't engage so it's too easy to twist slightly. When rotated, the lens opening is prevented from narrowing to the set aperture.

Great product I bought it for my Canon EOS M 50 mark 2 and found that it also fits my Nikon d 3500 SLR.