bought the 46mm to use with the Leica Summilux 35 Asph Fle. In contrast to other filters, this one is slightly larger on the outside, so the lens hood no longer fits. I thought it would be good to know if anyone uses it with this lens. Other than that, it's a great filter!

bought an FD → Leica M. It's a FL lens, which may or may not be used depending on the lens, but I was able to use it normally with 50mmF1.4. The FD lens mount has a locking mechanism. Although the structure is more complicated than other mount adapters, the price is the same as other mounts, so it is very helpful. Thanks to this locking mechanism it is also possible to move the aperture flap and in the case of an F1.4 lens this is very convenient as it can be used as an aperture ring for F1.4 → F2.8 → F5.6 → F11 when the aperture is set to minimum.

This adapter opens the lens of my Leica camera with a Canon lens

Got the L/RL/M adapter to use a Leica R Macro lens on the Leica M for the few macro photos I take. I didn't feel like paying 160 EUR for an original Leica adapter, so I bought this one from K&F. R lens fits perfectly with no play, and the connection to the M camera is also perfect. It goes up and down nicely, without exerting any force, without anything wobbling. Perfect for my area of application. I've bought 3 K&F adapters so far and I'm super happy with them. They make a valuable, stable impression. It may be that after years they no longer have the quality of a Leica original due to larger manufacturing tolerances, but currently. it's great

Compared to the Leica 2000b

Leica M ring

I ordered the filter to go with my Leica Q2, on which it fits perfectly, of course.

The filter has a very high quality finish and does justice to the Q2.

ND1000 I find already very nice for great effects such as an almost empty city hall market at noon.

From me there are 5 stars.

The Leica lenses fit perfectly on my xt20 the ring is very soft on both sides.. here is the one I received.