52mm UV Lens Filter HD MCUV Ultraviolet 28 Multi-Coated Filters (Nano-Xcel series Toughened Glass)

The packaging is high-quality. The filter comes well protected with a rubberized grip that prevents it from wobbling. The glass arrived perfectly, without any damage or specks, and it fits my Leica 12-60 lens like a glove. I haven't noticed any loss of sharpness in the shots I've taken with the filter in place.

Large diameter filter (95 mm.) with excellent price / optical quality ratio. Extremely thin ring, almost invisible when mounted on lenses such as the Nikkor 200-500 or 180-600 zooms, which I use frequently for motorsports or aviation photography.
Such large front lenses are the most exposed parts of a photographic equipment and particularly subject to fingerprints, dust or accidental impacts, if a sturdy lens hood is not mounted. These filters secure the front lens while making the shots a little more saturated, but never distorted in color.
I have not detected annoying reflections in the shots.
Very fast and safe shipping.

After extensively testing the K&F Concept Nano X-Series Slim MC UV Filter, UV Protection Filter-43mm over several days, I'm impressed by its performance. Here's my detailed 5-star review:

Image Quality: Crystal Clear and True to Life
The UV filter has no negative impact on image quality. Sharpness and color accuracy are maintained, and I didn't notice any differences in image quality in different lighting conditions—neither in bright sunshine nor in cloudy skies. The filter effectively reduces lens flare and color cast, which is especially noticeable in landscape shots.

Easy Installation: Hassle-Free and Secure
Screwing the filter onto and off my 43mm lens was a breeze. The filter sits firmly and securely without loosening during use. Even with frequent switching between different filters, the screw connection proved to be robust and durable.

Robust Coating: Scratch-Resistant and Durable
The filter's coating is excellent. Even after intensive use and occasional touching, the surface remained scratch-free. The scratch-resistant coating withstands daily wear and tear and shows no signs of wear.

UV Protection: Effective and Reliable
The filter effectively protects my lens from harmful UV rays. I noticed a significant improvement, especially when shooting outdoors, as there was less lens flare and color cast. The UV protection ensures that photos appear clear and natural.

Slim Design: No Vignetting, Even at Wide Angle
The filter's slim design is excellent. Even at wide-angle shots, I didn't notice any vignetting. The filter is so thin that it doesn't shade the corners of the image, making it ideal for photographers who like to work with different focal lengths.

Cleaning: Simple and Effective
Cleaning the filter was surprisingly easy. Fingerprints, dust, and water spots were easily removed with a microfiber cloth without compromising the coating or transparency of the filter.

Value for money: Excellent
Compared to other UV filters, the K&F Concept Nano X-Series filter offers excellent value for money. The combination of high-quality workmanship, ease of use, and excellent image quality fully justifies the price.

Conclusion:

After extensively testing the K&F Concept Nano X-Series Slim MC UV Filter, UV Protection Filter-43mm over several days, I'm impressed by its performance. Here's my detailed 5-star review:

Image Quality: Crystal Clear and True to Life
The UV filter has no negative impact on image quality. Sharpness and color accuracy are maintained, and I didn't notice any differences in image quality in different lighting conditions—neither in bright sunshine nor in cloudy skies. The filter effectively reduces lens flare and color cast, which is especially noticeable in landscape shots.

Easy Installation: Hassle-Free and Secure
Screwing the filter onto and off my 43mm lens was a breeze. The filter sits firmly and securely without loosening during use. Even with frequent switching between different filters, the screw connection proved to be robust and durable.

Robust Coating: Scratch-Resistant and Durable
The filter's coating is excellent. Even after intensive use and occasional touching, the surface remained scratch-free. The scratch-resistant coating withstands daily wear and tear and shows no signs of wear.

UV Protection: Effective and Reliable
The filter effectively protects my lens from harmful UV rays. I noticed a significant improvement, especially when shooting outdoors, as there was less lens flare and color cast. The UV protection ensures that photos appear clear and natural.

Slim Design: No Vignetting, Even at Wide Angle
The filter's slim design is excellent. Even at wide-angle shots, I didn't notice any vignetting. The filter is so thin that it doesn't shade the corners of the image, making it ideal for photographers who like to work with different focal lengths.

Cleaning: Simple and Effective
Cleaning the filter was surprisingly easy. Fingerprints, dust, and water spots were easily removed with a microfiber cloth without compromising the coating or transparency of the filter.

Value for money: Excellent
Compared to other UV filters, the K&F Concept Nano X-Series filter offers excellent value for money. The combination of high-quality workmanship, ease of use, and excellent image quality fully justifies the price.

Conclusion:

Excellent UV filter to protect your Sony 16-50 lens that I personally mounted on my ZV-E10 mark II. I make this point because all the reviews I've seen talk about this filter with a larger diameter. I took the 40.5 one which is not very popular but is suitable for the Sony 16-50 lens. I highly recommend it, even if it costs more than others

Quality filter from K&F concepts at an affordable price. The filter is slim and threaded onto my lens easily. I experience no vignetting with this filter on my 18-45mm kit lens. The lens is clear, and provides a layer of protection for my lens. Photos included show the photo taken without the filter attached (the one with the filter in the photo), and then the same shot after I installed the filter. No difference - exactly what I'm looking for. You can't go wrong with K&F concepts - high end quality at a budget friendly price.

Some say you don't need now with digital photography, but I have always bought a UV filter to cover all my lens. Never have to worry about fingerprints or dirt and dust getting on lens. Great price and very well packed, love the case it comes in.

If you’re looking for some good quality protection for your lens, it’s hard to beat K&F Concepts at this price point. The quality of materials, fit and finish. And overall clarity and protections of this product, provides a fantastic way to keep a multitude of things from getting to and damaging your more expensive lens.

For me it gives me a great amount of comfort having some protection that is so good at doing its job, that I don’t even know it’s there until it’s already succeeded at protecting me.

Overall, this product is made very well, it fits perfect on my lens and does a fantastic job at what it’s intended to do. If you need UV or more importantly damage protection, this is a great choice that I highly recommend for this price point.

I have included some pictures and video to help show the quality of the product. I hope you found this information to be helpful in your decision.

I know some people arent fans of putting glass on top of glass, but often times when you rent a lens its gonna have a protective filter on it. I needed something to protect my 35 1.8s lens for Nikon. This allows me to do that. The picture quality remains solid. I just wish the case this came in wasnt so big.

Definitely low profile, uv protective of camera. I think there is slightly more contrast in photos too which is welcome! Highly recommended!