Quality filters from K&F Concepts at an affordable price. The filter is slim and easily screws onto my lens. 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. The photos included show the photo taken with no 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.

Good workmanship and no loss of quality when used. Well done. Clear recommendation!

Very neatly presented in a handy and practical case that provides good protection for the filters when not in use.
The filters themselves are of good quality and work well.

I like this camera it comes with a case.

This is a well built backpack camera case. Lots of room and greasy protection for your expressive gear.

As with most K&F products, the build quality of this filter is quite good. The threads are smooth, the filter ring is powder coated and then the optics... well, hard to tell they're clear or anything as it's a diffusion/softening filter, but the image quality is still quite good. More about that later. The filter comes in a circular filter housing which is one of the cleanest filter housings I have ever seen! If they aren't already selling these as products, they honestly might be! There are raised dividing circles that allow you to fit filters of all sizes into the case, unlike most that have a foam cutout (which admittedly offers more padding). It would be nice if the filter housing had a little sticker stating what's basically on the box - "Nano-Series 52mm MRC Black Diffusion 1/4" in my case. In fact, the outer box has it listed a few different times , including twice on the sticker label... one on the case would be even better The optics look like clear glass with a few small gray dirt spots This is the intended design The effect it creates is a soft diffused glow ;a bloom effect.Using this black diffusion filter reduces contrast and overall it looks like a soft filter.But sharpness at the point of focus is not affected too much so they are used in portraiture as well as other creative photography Light sources bloom when looking through this filter I still find the 1/4 power very useful, while the 1/2 to 1 can be more of a niche.

This filter works well with several of my Canon lenses. It feels very well made and I am confident that it is added protection for my lens glass as well. I appreciate it comes with a sturdy case that can be used when not on my lenses.

The filter is supplied in a plastic carrying case with high quality foam for protection. The filter sits firmly in the housing, so you can be sure that it will not move after storage or be damaged during transport.

The filter itself feels of good build quality, with the metal frame holding the glass in place. I like the lever to adjust the stops, the action is smooth and doesn't move on its own. I would have preferred that K&F included a lens cap just in case I wanted to leave the filter on the camera.