have a Sony A7iii and I was looking for a good adapter for my 2 Canon lenses, 85mm f/1.2 and 11-24mm wide angle lens. This K&F Concept Adapter fits my Sony A7iii well and supports the lenses. I was skeptical about the sharpness of the photos. However, this adapter really nails the sharpness. It's better not to use the widest aperture, because lenses from other manufacturers work extremely poorly. Both sample photos were taken with this adapter. The shot in Florida was taken with the wide-angle lens. The mountains are recorded with 85mm. Autofocus is excellent on a 7iii body, so I didn't see any significant difference between using the adapter and the native lens. Eyefocus works very well even in low light conditions. The good thing is that I was expecting a lot of vignette, but I was surprised to find out that this lens doesn't produce a large amount of vignette. So the bottom line is that you should give this adapter a try. It fits well, not too tight like some cheap adapters. The build quality is really good. Happy clicking!

I have had the same experience with the M42-Nex adapter.

When I ditched my Nikon and switched to the Sony A7IV, I chose this adapter because of the amount of Nikon lenses I already had. Primarily for my Nikon macro lens, on which I focused manually most of the time anyway, it doesn't bother me at all that the adapter is manual. Money was clearly saved here by saving myself the Sony macro. The adapter sits well on the camera and lens, so it fits extremely well and looks sleek. A Nikon lens on a Sony body is always an eye-catcher. The aperture ring is of course also manual and does not tell the camera what aperture level you are at. In the metadata of the photos, it simply shows F--. So you have to develop a feeling for which aperture you have just set. I did notice a little more Cromatic abortion, but that can be quickly remedied in Lightroom by selecting the lens. Images are sharp and the adapter has no downsides other than adding some length to the lens.

the question was whether the dolle adapter from sony was worth it to pack my old minolta-compatible ones onto the @6000. the answer: no, it's not worth it, the thing is outrageously expensive for what it can do. so the K&F part had to come from. all af-s become more or less stupid fully mechanical lenses. but with a zebra and a magnifying glass, it shouldn't be rocket science to work with it, unless you have nothing but snapping in mind. an aperture control is also on it, so if you're already out of the automatic mode, you should be able to cope with it and take entertaining photos. the respective bayonet connections are quite tight, tighter than sony imagines, so they also have zero play. is this a permanent solution? no, definitely not, there are still one or the other e-lens coming along. but until then the old minoltas can be used wonderfully. and there is also an a-68 lying around, for which i need the existing stuff. Addendum: Whoever had the outrageously expensive adapter from Sony on it, which ultimately only loops through the lens data and doesn't get anything right, either nothing happens at all or it bangs forever, but it costs a lot, take the k&f right away....

For the price you can't complain. I use the lens on my Sony A7S2 with an adapter and I find the imaging quality very good. It's also good for videos to be easy to trade. A little tinkering with the software and the results speak for themselves. The processing is good I am satisfied. I can recommend it.

don't normally give 5 stars in these reviews but this lens almost made my old Nex 3 feel like a new camera. For taking pictures of people, it's head and shoulders above any other NEX lens I've tried (this is my fourth lens). Essentially, the f1.8 aperture lets in so much light that the camera (along with image stabilization) can use faster shutter speeds to get a specific shot, which means a lot less blur and, in practice, beautifully sharp images. The f1.8 aperture also defocuses the background of the shots, making for simpler compositions that emphasize the main subjects in the frame. Also unlike many fast Primes, this pen is sharp down to F1.8. Of course, the 75mm equivalent focal length makes this a single-purpose lens, but don't let that put you off - it's a purpose that most people will need plenty of, and there's nothing wrong with doing one thing well. Here is a real example: Last year I went to a wedding. A nice occasion but the ceremony was indoors and it was a dull gray day. I used the stock zoom lens that came with the Nex (the 18-55mm) and none of my images came out all day; they were all blurry because people were moving too fast and I couldn't react in time to catch fleeting moments and that was because the zoom lens can only do about f5 at its 55mm zoom end and in any case it is on this one Focal length not very sharp. Last weekend we celebrated my little son's christening. A nice occasion but the ceremony was indoors and it was a dull gray day. I used this lens and every single one of my photos came out perfect - beautiful. No need for flash, no need for high ISO. I was even happy to set the camera to the default settings and let my friends take photos for me because I trusted the lens to get a good picture. I've never done that before! One thing I've found is that I have to go a step further backwards than I'm used to because the lens can't focus close-up. You must be a few feet away from your subject. In every other respect, this is the best money I've invested in photography since buying the camera. I was nervous about buying this as it's more expensive than the entry-level lenses in the Nex range. It turns out there's a very good reason for the difference - it just has a much better "success rate" for getting the right photo first time than any other lens I've used; it complements the money I originally invested in the Nex camera and adds another dimension it didn't have before.

I think it's a well machined adapter that works very well.. I tried it on a M42 35mm and a 135mm lens .. I was surprised at the quality of images I was able to get on my Sony A7ii and Sony 6000... Well worth the investment.

Compared to the original Sony this adapter allows the adaptation of Sony A and Minolta AF lenses only of the bayonet: the transmission of the diaphragm and the data communication body / lens does not exist; as a result, the adapted lenses function as manual aperture preselection lenses. About the diaphragm, this can be operated by acting on the ring on the adapter which has no indications but makes some clicks by counting which you can roughly define the effective value starting from the maximum aperture of the lens (for example if a lens opens to 2.8 by making the ring make 1 click we will close at 4, 2 clicks at 5.6 and so on).
The camera must be set for shooting without lens and in practice it will work in manual or aperture priority, also the focus will be manual but focus peaking assistance is possible.
Ultimately it is a cheap product, well made, economic alternative to the Sony originals; not suitable for action or sports photography, great for everything else. I cannot give information on compatibility with full frame sensors because I use APS C.