K&F Concept 58mm MC UV Protection Filter Slim Frame with 18-Multi-Layer Coatings for Camera Lens (K-Series)

Tengo un Sigma 100-400mm, ya he probado el filtro K-MCUV de 67 mm, con varias tomas y ha trabajado perfecto.

We have an optometrist in the family. That means that we are all very conscientious about our eye health. She has two children and they both had sunglasses as babies. She did this because UV rays can be damaging and can actually end up causing problems like cataracts and macular degeneration down the road. The same reason our family member has a vocal concern about our eye health is the same reason that photographers should use a UV filter. A UV filter is a glass filter that block ultraviolet (UV) rays and protects camera lenses from dust and scratches. With that in mind, I was excited to add the MC UV Protection Filter from K&F Concept to my filter collection.The first time I took this filter out, I was out to dinner with my family. We decided to try out a new restaurant in town that has a rooftop dining room. We arrived and got seated around 6:00 p.m. and the sun was hitting the rooftop full force. I pulled my camera out and screwed the filter into place. It wasn’t difficult to secure on the lens, which was refreshing since some filters don’t like to line up properly sometimes. But this filter twisted on smoothly and without any catches.I’m actually going to back up a moment to say that before I took it out into the blinding sunshine, I did a quick test at home. I simply held the filter with one hand in my photo booth. I looked at my other hand in the light and then moved the filter over top of the exposed hand to see what the difference was. It was interesting to see how much of a difference the filter was making -- even under an LED light. The bluish tint was eliminated and my hand looked warm and like I was viewing it in HD.Now, fast forward to our rooftop dinner and how I noticed the clarity of the images was greatly improved by this very simple filter. I walked around the roof and grabbed a few shots that would normally appears dull in that type of direct sunlight. With the UV filter, they appeared vibrant and clear rather than hazy. I also really like how slim the filter is because it doesn’t add a lot of weight to the existing lens when I’m using it.The K&F Concept UV filter was an unexpected surprise for me. It is really well made and does a great job with filtering sunlight. I love that I have an added layer of protection on my lens when I got out and about and that my outdoor images look better than ever.

I didn't rate features as I remove any protective glass before shooting.

I bought this filter to replace a previous filter that fell apart while on my lens! This filter is simply supposed to protect my lens and it does that with confidence.

The filter is crystal clear and the rare fingerprint wipes off effortlessly. The edge of the filter has just enough texture to allow your fingers to grip easily. So far (thankfully), no drops or anything to report on how it protects my lens.

Thin lip, strong threading, coating looks even. Using both of them on orion 2x54 objective lens. Can't see any CA or distortion. Coating resist to cheap cotton shirts. Both came with good packaging and QA/QC. Digital picture effectiveness is unknown though. I would see this working as a protective cap for an asahi 50 f1.4I would buy again with confidence.

Excellent filter for the price!

The filter threaded onto my camera lens without issue, and is very clear. The case that it ships in has some protective foam inside of it as well, and has gone directly into the camera bag for future use if the UV Filter ever needs to be removed for other filter installs.

I have serious doubts about the veracity of all the raving reviews about this filter. The copy I received has a very visible green colour cast about it. Therefore, stating that this is a great filter or even that it is great for the price is only acceptable from reviewers who could be: 1-Colour blind; 2- Taking pictures in black white only; 3-Wishing to spend hours correcting the colour; or 4-Faking the review. By the way, the polarizer filter is similar.Are there any positives? Yes. The packaging is good, and the filter construction appears robust (did not test long term). Oh, and the price is cheap, which is not surprising considering the results.Suggestion: look elsewhere. Happy shooting.

This is a great good quality UV Filter. I use it all the time and it also serves as a protector for my Nikon camera lens

Definately lower quality pictures with the filter fitted

Another great product from K&F. I have a few of their items and am always impressed with the quality.

Very pleased