Nowadays, the biggest advantage of a UV haze filter is to protect the front element of the camera lens. There's also haze correction, but the need for film for blue reduction isn't the case with digital cameras. The bigger reason is that today's post-processing software can filter as much haze as the photographer desires, which no UV filter can do. The need for protection is real. Even if it means keeping the front elements of your lenses from getting dirty or splattered, these filters play a role. I was wearing this filter when I made a misstep and splashed into a small river that soaked the camera. I felt a lot better about my clumsiness knowing I wouldn't have to face the delicate chores of lens cleaning when I got home. However, a filter in the light path must be of high quality, otherwise the image will be degraded. I'm far from having a lab to test glass here. The best test I could think of was easy. I would take an identical picture with and without the filter and then compare to see if I have any issues. Yes, it's raw, but it's what I have. Please see the included image. To create this, I set the camera on a tripod, set the exposure manually as a best estimate, and then took two pictures — one with and one without this filter. I took the RAW images, randomly cropped a portion of one and pasted onto the other. Both are labeled. I then compared the two and focused on the area where they merged. I drew a black line at the approximate location of the join. I didn't do any post-processing. These are the RAW (DNG) images straight from the camera, converted to JPEG just for posting here. I did my best pixel peek on both images and didn't notice any distortion from this filter. In other words, it does exactly what I want it to and has now earned a spot on my lens.

Today, the biggest benefit of a UV haze filter is to protect the front element of the camera lens. There is also haze correction, but the need for film for blue reduction is not the case with digital cameras. The bigger reason is that post-processing software today can filter out as much haze as the photographer desires, which no UV filter can do. The need for protection is real. Even if it means the front elements of your lenses don't get dirty or splattered, these filters play a role. I had this filter on when I made a misstep and splashed into a small river, soaking the camera. I felt much better about my clumsiness knowing I wouldn't have to face the delicate work of cleaning lenses when I got home. However, a filter in the light path must be of high quality, otherwise the image will be affected. I'm a long way from having a lab where I can test glass here. The best test I imagined was simple. I would take an identical image with and without a filter and then compare to see if I have any problems. Yes, it's raw, but it's what I have. Please see the image provided. To create this, I placed the camera on a tripod, set the exposure manually as a best estimate, and then took two images — one with and one without this filter. I took the RAW images, randomly cropped a portion of one and pasted it onto the other. Both are labeled. I then compared the two, focusing on the area where they were put together. I drew a black line at the approximate location of the join. I didn't do any post-processing. These are the RAW (DNG) images straight from the camera, converted to JPEG just for posting here. I did my best pixel peek on both images and didn't notice any distortion from this filter. In other words, it does exactly what I want and has now earned a spot on my lens.

I bought this for a rarely used camera. It's still a valuable collector's item that I want to keep in excellent condition and that means I had to protect the lens. I only have filters with the Zeiss "T" coating made of German Schott glass on the cameras that I use a lot because I think they are the best multi-coated filters I can afford, but I can't spend the money on them spend on a camera I rarely use.
Any camera that is threaded to accept a filter deserves the protection that comes with a filter mounted in front of the actual camera lens. I would rather risk damaging the AR coating of a filter that can be easily replaced than risk damaging the actual lens on one of my cameras through cleaning and exposure to dust or chemicals in the air.
This brand of filter came carefully packaged and the filter holder that comes with the filter is well designed and provides excellent protection for the filter when it is not on the camera lens as I am using a different type of filter. This filter has multiple AR coatings on both sides of the filter and after comparing the results of identical images taken with the same camera using this filter and one of my prized and now unaffordable Zeiss "T" filters, I can say I see no difference can the results. I'm sure an optical lab could document some differences, but in the real world I can't tell any differences by comparing the test images,
This design works so well that I am slowly replacing the older non-Zeiss filters I have on my older lenses and cameras with these newer designs.

I have used a few K&F filters on my camera lenses and have never been disappointed with their quality or price. The UV filter is made of high-quality optical glass and leaves no color cast or other imperfections on my images. Put simply, what you shoot is what you get, just beautiful, clean images. This type of filter also serves a secondary purpose as a protective filter for your expensive lens. After all, it's cheaper to replace a filter than a lens, isn't it? Overall, I am very happy with my K&F Concept 46MM UV Filter Ultra Slim Japan Optics Multi-Coated UV Protection Lens Filter and have no hesitation in recommending it.

I did this with an 18-400mm lens, just one filter I need

This K&F Concept camera backpack carries everything I need it to. From a canon 80d with multiple lens to a dji mavic air 2 and all the batteries. Plus room for lots more

bought this for a rarely used camera. It's still a valuable collector's item that I want to keep in excellent condition and that means I had to protect the lens. I only have filters with the Zeiss "T" coating made of German Schott glass on the cameras that I use a lot because I think they are the best multi-coated filters I can afford, but I can't spend the money on them spend on a camera I rarely use. Any camera that is threaded to accept a filter deserves the protection that comes with a filter mounted in front of the actual camera lens. I would rather risk damaging the AR coating of a filter that can be easily replaced than risk damaging the actual lens on one of my cameras through cleaning and exposure to dust or chemicals in the air. This brand of filter came carefully packaged and the filter holder that comes with the filter is well designed and provides excellent protection for the filter when it is not on the camera lens as I am using a different type of filter. This filter has multiple AR coatings on both sides of the filter and after comparing the results of identical images taken with the same camera using this filter and one of my prized and now unaffordable Zeiss "T" filters, I can say I see no difference can the results. I'm sure an optical lab could document some differences, but in the real world I can't see any differences when comparing the test images I took with this filter and the Zeiss filters I've used. This design works so well that I am slowly replacing the older non-Zeiss filters I have on my older lenses and cameras with these newer designs.

Ideal protective filter for the camera lens. It does not distort the images and is easy to screw on. Clear recommendation.