Another win from the folks at K&F! This circular polarizer is excellent and has thankfully found a place in my camera bag! Sure, I have other polarizers from other manufacturers at 1.5 to 3 times the price and at the end of the day they all do the same thing. It all comes down to the materials, fit and quality of the elements/films/coatings. For the K&F, this ticks all the boxes and is certainly price competitive. The polarizer screwed directly onto my powerful Canon EF 27-70 2.8 L lens as well as my EF 16-36 2.8L without any of the snagging, pulling or dragging that cheap filters tend to have. Once mounted, you can rotate the filter's aperture to adjust the polarization to your needs. I haven't done an extensive study on this to see if there is a color cast or defraction, but I haven't noticed any anomalies when using the filter. And no, it is not permanently attached to my lens as I probably don't need polarization. The filter comes with one of the K&F lens cleaners as well as a spare lens cap (K&F brand) which is a nice spare part. Also comes with a small lanyard. The filter and lens cap come in a reusable, padded plastic storage case for safe keeping. I've included a few photos of the contents of the box.

I used this filter on my Canon Rebel T7 with EF-S 18-55mm IS II lens and a size larger adapter. It works beautifully, crystal clear, screws on with ease. It comes in its own hard case with a cleaning cloth.

Some time ago I bought some ND filters for another lens and could never use them on my 85mm fixed focal length. This distance adapter ring fits very well and could be screwed onto the UV filter that was already in place. In connection with a variable ND filter a really good combination. The pictures only show the UV filter with the adapter ring without an additional filter.

I have a Samsung NX 500 and the adapter fits perfectly, I've tried it with a Canon EF lens and it's perfect. It only works in manual mode

This adapter fits my Nikon J1 perfectly. I can use my Canon EF 75mm-300mm lens.

Hello everyone, since there are no reviews yet I thought I'd write one. The adapter arrived 4 days ago and was even faster than stated. So that's a plus point. Now to the adapter: It's just an adapter that allows you to attach the lenses to the Samsung (NX Mount). No electronic data is passed on to the camera or the lens! Which is also correct, since nothing else is advertised either. Workmanship: The entire adapter is made of metal and makes a stable impression. The EF / EF-S lenses are very tight and don't wobble. The mount for the Samsung bayonet has a very small scope that can be safely ignored. Detaching the lenses works without the lens getting stuck anywhere. Application: Since no electronic data is exchanged, focusing is done manually. The focus help on the Samsung camera is activated with the OK button (Samsung NX300M), a small image section is enlarged and the "sharp edges" are displayed using the focus peak. The aperture is either always the open aperture or you set it beforehand on the Canon camera (choose aperture, press aperture preview button, remove lens) A somewhat cumbersome way. It's definitely more fun with completely manual lenses like those from Samyang or Walimex. But if you are comfortable with working with an aperture, you can have a lot of fun. Tested lenses: EF-S 18-55mm IS II <- OK EF-S 55-250mm IS II <- OK EF 50mm f/1.8 II <- OK EF-S 10-18mm STM <- Doesn't work because manual focus only works with an electrical voltage Conclusion: The adapter does what it promises. You can't expect much for 17 euros. I will definitely use it more often. If you can overlook the hurdles (aperture, focus), this adapter is definitely recommended. If you just want to take photos, you should stick to the original Samsung lenses. Attachment: Product photo and an example picture I made in the garden on the fly.

After an initial error from me, the adapter does exactly what is stated here. It connects my EF Canon lens to my Samsung NX500. Everything is tight and nothing wobbles. Since no data is exchanged between the camera and lens through the adapter, I had to switch off the automatic program. So take the knob off the automatic program. Focus and aperture must be set manually. Otherwise everything works perfectly.

I adapted from 58 mm to 67 mm. ND filter fits perfectly on the adapter and this perfectly on the lens. At a cost of around 6 euros for the adapter, I am very satisfied.