The camera backpack is exactly what I was looking for. When I'm on my way to locations, I like to have everything with me. In my backpack I now have a Maviv pro with 4 batteries and all accessories, a Maviv Mini with 3 batteries and all accessories, a LUMIX fz 1000 2 with all accessories, several chargers and cables and a 17 inch laptop.

bought three adapters with a Canon R mount (one for Leica R, one for Contax and one for Minolta MD). They all reach exactly infinity. The internal anti-reflective paint is well finished. When I check them with a caliber, the two sides of the adapters appear planar (but I don't have any wide-aperture lenses to test that on). On the camera side, they are all precise and without light leakage. On the optical side, I noticed a slight light infiltration on two adapters. Of course, I purposely searched for them by bringing a 500 lux LED flashlight half a centimeter away from the adapter. Light penetration is very unlikely in normal situations (perhaps on an easel on the beach in August). I solved it anyway with a small rubber grommet. If you're shooting freehand, that's not necessary, the hand is hiding a possible infiltration. Overall they look like good adapters to me. Due to their robustness, they can withstand lenses up to 600/700 grams. However, I would not mount lenses that are larger than one kg on the nose.

bought this adapter to use my old analogue lenses on a Lumix G6 to achieve a kind of "retro" look in videos. And what should I say? The adapter does its job well - the lenses are secure and you don't have to worry about anything falling off. Even with a telephoto lens, you don't have to worry about the lens detaching from the adapter or even the adapter detaching from the camera. So a clear buy recommendation from me.

Used on Techart Pro (so not on the Leica system), very useful for adapting the M42 lenses to my Sony (the Techart Pro adapter has a Sony to Leica M connection). A bit expensive for a piece of metal, but at least it's not plastic, it looks good and isn't difficult to attach.

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

Compared to the Leica 2000b

I bought this adapter for the Lumix G70 - to use the lenses of my Sony Alpha 58 (A). It works wonderfully! Also the manual adjustment of the aperture. What I don't like so much is that there is a circular groove below (contact between A-lens and adapter), the contact goes over the chip of the A-lens and could "easily" damage it. Maybe a production error.

Leica M ring