ordered the K&F Concept K-Series 72MM MCUV Pro UV filter Slim MC for my 72mm lens. The K&F UV filter can be qualified as successful in terms of production. The filter is cleanly made without scratches in the glass etc. The thread is cleanly made and can therefore be screwed onto the lens cleanly. A sturdy box is supplied with the filter for storage and transport. The obligatory microfiber cloth is also included in the scope of delivery. But what does a UV filter actually do? Well, in this case it does exactly what the name suggests, it filters the UV rays out of the light. This used to be extremely important in analogue photography. With today's cameras, at least the higher-priced ones, the electronics can largely filter this out. Such filters are therefore mainly used to protect the lens.

Review for: “K&F Concept 72MM UV Filter — HD Ultraviolet Filter Scratch Resistant Lens Protector Filters with Lens Cap Cleaning Cloth for DSLR Cameras (Nano-X Series)” Brand: K&F Concept Size: 72MM The K&F Concept 72mm UV filter came in a plastic container inside a plastic-wrapped box, with a 72mm lens cap, wrist strap, and microfiber cleaning cloth. I checked on the K&F Concept Canada website and the price on the list (currently $36.99) is the same, although their website says a special price of $46.06. I always put a UV filter on the front of my lens to protect it in case it gets dropped. K&F Concept is a good name when it comes to filters, so I expect it will be decent glass as well. I'm impressed that it came with a lens cap as I lost mine. The plastic case with the wrist strap is great for keeping the filter safe when not in use.

like this polarizer, it reduces light on my Sony by a couple of stops, but it's not as strong as I expected for a $20 polarizer. It's pretty clear with very little distortion, although I don't compare it to a test chart to be completely sure it's uniform. I like that it includes a lens cap and sealed microfiber cloth. One issue I had with this filter is that the threads bind a little with my high end black and white filter. This is why I never test cheaper filters with my bear lens threads. I also had trouble fitting both the original 72mm cap and my own Sony 72mm cap, so something must be off with the shape of the filter. All in all, it's really not a bad filter. For all I know, the issues I had may have been due to shipping, although the filter appears to be in perfect condition.

Over the past few years, I've ordered a number of filters from various K&F series filter lines, and with only VERY few, I've been happy with all of them. This "K&F Concept 72mm Circular Polarizer Lens Filter [CPL]" is another plus product from them. I ordered this 72mm filter as an experiment to see how it would work along with my Sigma 15mm f/1.28 EX DG Fisheye lens. However, since this lens contains a large bubble for the front element, I wanted to try screwing it into the extended lens cap. Then tested if the CPL still worked. After screwing it into the extended cap, the filter rotated smoothly. Photographically, while the CPL filter did a good job on both the sky color and water reflections, the lens's barrel effect, exacerbated by the extended cap's distance from the lens element, made it not worth reprinting the images here. Despite this result, I will keep the lens rather than return it for 72mm camera lenses that I will undoubtedly purchase in the future. All in all, I think this “K&F Concept 72mm Circular Polarizer Lens Filter” is a good buy considering its mid-range cost and above-average performance. I think it is a solid 4-star product that should be considered by anyone in the market for such a CPL filter.

This lens filter and cap are of excellent quality.

Great filter and lens cap. I'm thrilled

I have mounted the kit on a lens with the 72mm ring and it fits perfectly. It is easy to assemble and its handling is very simple, it does not require reading the instructions (I would say it is better not to read them) just looking at the illustrations is enough. Regarding the quality of the product, it seems to be made with good materials and the finish is excellent; The polarizing filter holder is very effective, placing the filter well and carefully, you do not touch it at all. There are two compartments for the square filters that I hope to get the most out of, I'm happy. As for the optical quality of the filters, I can't give an opinion because I haven't used them yet.

Magnetic Filter Attachment, quick and easy to attach or remove from the camera lens.
THe 1/4 Black Mist filter is fantastic and definitely one of my favorites. The Filter comes with 3 items

1) The Filter Ring that threads on to the lens end
2) The Magnetic filter
3) Magnetic Filter Lens Cap.

Common Question(s):
Can you use the canon lens cap with the Magnetic ring installed (YES)
Can you use the Canon lens cap with the magnetic Filter in place (YES)
Can you use the Lens Cap with the magnetic base without the filter magnetically attached (YES)

Overall, really good quality lens and it is a breeze to install. The Magnetism is strong and the lens cap does not fall off nor does the filter. It has just the right amount of magnetism to keep everything in place.
Very Good Lens and Concept for mounting it to the camera.