Having purchased a square filter, I needed the mount to use the filter and found as usual with K&F Concept that it is well made. It was a little fiddly to work out how to fit the mount to the lens but once I worked it out this was easy and allowed the filter to rotate on the lens mount as needed.The adapters for the lens sizes are useful for this however they could do with a more suitable case for carrying with the mount as all are supplied within separate plastic bags. It won't be a big problem if you have a good sized back suitable for your kit and plenty of suitable pockets for the filters.I'm more than happy to recommend based on the quality but I'd urge improvement in the storage with a decent storage bag included for the lens adapters.

Used many filters and for the money, highly recommend.

These are not cheap but comapred to Lee Filters a bargain. The filter holder is excellent, and is supplied with multiple adapter rings, which are £26 each from Lee. I can see no significant colour cast. So if you want to experiment with proper filters without breaking the bank these are a good buy. The filter cases are beautiful and the whole product presentation/packaging oozes quality.

This is the second piece of photographic equipment I have bought from K&F Concept and in both cases the items have impressed me by their quality and value. The filer mount and lens adapters are made in well finished aluminium, are easy to assemble and use. I am confident that they will give me years of good service

Great system for filter mounting.

Mostly excellent full metal build quality, except the filter holding part itself is plastic. Very good design and very simple to use. Fast to put on and off (quick release is awesome). I have faith in the build quality, though. I will update this review if it breaks.

Excellent with little colour shift which isn't really relevant with post processing. Found it a fraction out in real world testing in stops and no great loss in sharpness but I'm just nick picking. Do your own tests to find the perfect settings. At the price it's good enough for most photographers.

I haven't had the change to do real world testing yet but I've taken a few test shots in my garden to check for loss of sharpness and color casting. I used a macro lens for checking fine detail and wide angle to see if its consistent across the frame. I also checked it against my Lee Filters big stopper.I couldn't find any percievable loss of sharpness across the entire frame with the macro or wide angle.There is a bit of a color cast to it from looking at the exif data but shooting in raw the camera adjusted it out for the most part and can be edited out manually if required. Importantly though it seems to be consistent across the entire frame, even at 10mm on my apsc sensor.I did experience vinetting on the wide angle (both 10mm and 22mm) but again it can be edited out very quickly in lightroom.It would have been nice if it came with a light gasket supplied with it but for the massive price difference compared to the bigger brands I can forgive them for that. They can be purchased online elsewhere if required which is what I'll be doing.Overall I'm pretty happy with it, which is just as well really as it managed the slip through my Lee Filters folder when I wasn't paying attention and drop onto the paving slabs in my garden, which chipped the corners of the glass. That's my own fault though as it's a known issue I have with the holder, I experience the same problem with my Nisi filters in my holder so I think it's a bit worn out.