bought this lens filter because I was looking for a filter no thicker than 3mm that would fit in a new Haoge lens hood (which cannot take thick filters) for my X100V to protect the lens and the camera to make weatherproof. If you don't know anything about the new X100V, you need a filter that is weatherproof. After some searching for a 3mm thick filter I found this filter from K&F Concepts on Amazon. I was skeptical that it would only cost £5.99 and there have been some complaints of a color cast. However, I thought I'd give it up for the price. The box it arrived in isn't the best, but it did its job and the filter arrived unmarked. I held it over a white surface and I could actually see a slight shade of brown. However, I don't see any color cast in the pictures. If you hold the filter up to the light you can see a purple reflection. I have tried to show this in the pictures but there is some fading. It looks very similar to the anti-reflective coating you have on glasses - I don't mind that. Overall I'm amazed, it's actually a really good filter with good spread and no obvious ghosting — I shot in the sun yesterday and it worked really well. I've bought far more expensive filters in the past that weren't as good. Recommended — consider buying a second one as a spare!

For Fuji x100v, its easy to install and can be flipped to accommodate a WCL/TCL or a lens hood like in the photo. Will have to actually test it for street photography if its really water and dust resistant.

Sits well on Fuji x100v. I tried it at night, the diffusion is good and the contrast is also preserved.

Perfect companion to my Fujifilm X100V and Hogue Lens Cover. The fact that it's waterproof is a plus; This filter is an excellent addition due to its WATERPROOF HIGH QUALITY UV FILTER. Happy to find it at Amazon.com Arnold

Works as intended. This is an easy game when mounted on the camera body (Fujifilm X-t3)

Good thing for little money. Now I can use my old lenses again.

Ordered and arrived within a day. I tested it on my Fujifilm x-e1. I have no words... If I had only imagined such a result... I would have bought it much sooner. Robust, well built and perfectly adapts to the camera body. I tried it with a Nikon 28-300 with a 50mm and with a Tamron 24-70. The results are very, very good and to get the focal length relative to the 35mm format, the focal length used by the lens must be multiplied by 1.7. For example, if you mount the Nikon 50mm, the equivalent focal length is 50*1.7 = 85mm. Of course you have to work completely manually, but the Fujifilm light meter helps you to compose a perfect photo. It is possible to work with priority membranes while the machine automatically sets the times accordingly. You just have to get used to focusing manually and everything runs smoothly. If there were 6 stars I would have voted for them. With this adapter we rediscover the photographer of the past, who calmly and patiently lurked, waiting for the right moment.

This is great when used in the right situations. I like to use it with my Fujifilm cameras. Build quality is as expected, which is pretty decent. I have no complaints. If you don't like this one, you might want to try a "Glimmer Glass" filter.