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.

This threaded 2-in-1 magnetic UV filter works with both regular 72mm threaded filters and K&F magnetic filters. It may work with other brands of magnetic filters that claim to be compatible with the K&F magnetic filter system. I use it on my new Sony RX10-M4 camera. I have threaded filters but no magnetic ones yet. I will update when I get a chance to use magnetic filters.

Great price, I got it for the lens protector. The thickness is also good.

very good

The magnetic attraction of the MRC UV filter (72mm) leaves a lot to be desired! The filter wobbles around on the adapter ring and threatens to fall off every time the camera moves, so it is not safe from loss when used outdoors. The other two filters have a solid hold on the adapter ring.

Over the past year or so, I’ve tried maybe a half dozen K&F filters uniformly finding them to be among the best I’ve ever experienced. This high density ND 1000 has met my expectations of excellence that this brand has now established with me.

There’s little to say other than it’s thinner than other filters of any sort meaning it has less of a chance of creating unwanted refractions once mounted. Like all filters, it must be used alone. If added to an existing UV or clear filter many used as a lens protector, the two can and likely will work to degrade image quality. This refraction issue is a good reason not to mount the UV or clear filters as a lens protector. A lens shade works almost as well as a protector but won’t interfere with a filter.

In use, this ND 1000 does filter to 10 stops (eyeball estimate) without affecting the color or introducing other unwanted effects. Like so many things photographic, the good stuff costs but also performs.

This UV filter was a great addition to my Tamron 35mm for my Sony. This filter is definitely more of a protector than a modifier, at least in my use case, it helps protect the lens's exposed focusing mechanism and keeps dust or particles out of the lens. Overall I would say this is a great filter for any lens as it creates a barrier between the front element and the world and I have not experienced any negative effects on image quality from having this filter on the lens.