I bought the backpack for a Canon EOS R and a Nikon Coolpix P950. Both cameras, various lenses, spare batteries and chargers have enough space in the backpack and, if necessary, the compartments can be rearranged thanks to the Velcro.
The backpack makes a solid impression and the zippers work perfectly.

Totally in love, i fitted my Nikon d5100 4 extra lenses, 2 GoPro Cameras (with some accessories) and i there is more space to use :)

well done. works very well. Allows legendary Zeiss lenses to be used on most Nikon film and digital cameras. focuses perfectly.

It allows me to mount m42 mount lenses on my Nikon 1 camera...there is no auto focus with it but it is very easy to get sharp photos...there is no glass in it so the optical quality of the lens used is not affected...this unit easily connects to my nikon one and my m42 lenses...the helios44_3 and the volna9...easy to screw on and off the adapter...the package is a week early arrived than expected and the price was amazing...this was one of the best values I've bought in a long time

So far I have had five different adapter rings for different system cameras from K&F, all of them mainly for taking portraits with Nikon lenses or doing macro photography (especially Tokina 100mm 2.8 with Nikon connection). All specimens have so far been manufactured very precisely and made and make a high-quality impression. Therefore full points, because the price-performance ratio of these items is really outstanding.

Looks and works as expected when I attach my Nikon G lenses to my Fuji XT-1. The construction is very good and the adapter is easy to attach and detach to the camera body and lens. My only wish is for the aperture selection ring to have more travel with a finer adjustment range, but I don't think that's possible due to the mechanics of the lens. If it were possible, it would increase the price significantly. Overall it's worth it for the price paid.

Seems well made, especially for the price. Accepts Nikon Ai/D/G lenses At first I couldn't attach the adapter to the Nikon lens. From a web search it seems it takes more force than you might think to put the Nikon lens on and snap it into the adapter. The subsequent assembly of the lenses went more smoothly. I was expecting to be able to use the aperture rings on the D and Ai lenses to control aperture, but that doesn't seem to have any effect. The outer ring used for the G lenses' aperture setting works with them, allowing me to control the aperture (though not as precisely as the D/Ai lenses' own aperture rings). Seems "good enough".

The lens was well packaged, unfortunately no bag was included, but I didn't expect that for the price. After removing the foils from the lenses, which I have never had with a lens before, checked the processing. The lens is solid, I didn't notice any flaws. The feel is good. So put the lens on my Nikon D7000. It sits firmly on the camera with no play. Focus is fast and accurate. Light intensity is good. The first impression is consistently positive. Since I have already worked with lenses from Sigma and Nikon as fixed focal lengths of 50mm, which are in a completely different price range, I am more than pleasantly surprised. For the money I got a solid lens. It remains to be seen whether it is also suitable for everyday use.