bought it to use with the many Pentax K-mount lenses (of various generations) that I use on the Pentax KP, including the Sony A7r 2 that I recently added to my kit. The adapter is well made and is made of very solid metal for the structure, for the connector and for the bayonet. The polished metal notched ring seen in the center allows the membrane to be closed between the maximum and minimum of 11 positions without reference. Basically, you can close the aperture of any lens, but you don't know exactly what value it's set to (other than, of course, the two extremes that correspond to the maximum and minimum of the lens mounted). This obviously applies to the most modern optics without their own aperture ring. The rotation of this ring, which basically wants to simulate the membrane ring, is quite fluid and has small shots to facilitate positioning as much as possible. I've used it with various Pentax APS-C lenses, from the old 50M 1.4 to the Sigma 18-35 f/1.8 Art and 17-70 f/2.8-4 C. All work flawlessly, always within the limit , which is imposed on the most modern models of an approximate selection of the membrane. Obviously there are no electrical contacts, so there's no exif data on the optics and the focus is only manual (but the A7R2 is excellent in that regard). It is precisely the need to focus manually and without an electronic connection that prevents the use of some modern lenses, that is, those in which the focus ring does not work mechanically, but through the camera module. For example, the DA 18-50 WR RE, a very versatile and lightweight lens that I personally hold in high esteem, is sadly useless as there is no way to focus. Apart from this limit, which the adapter obviously cannot fix, the product is very valid and allows you to take excellent quality images of optics designed for another brand. In particular, the Sigma Art 18-35 still offers spectacular photos, even if you use the APS-C crop mode (however, with the 42Mpixels of the A7R2 sensor, you can take 18Mpixel photos, which are still valid).

Perfect for using my old lens on my new Pentax!

Used on the Fujifilm X-H1 analog vintage Pentax lens body, perfect one hundred x hundred, fast delivery, seller recommended, Amazon package always spotless

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The lens is securely attached to the adapter ring and this is precisely and stably inserted into the camera body. The Nikon Nikkor lens is on a Nikon Z camera. The adapter is well made and has an opaque interior to prevent reflections. I'm giving it 3 stars for value for money, not because it's obviously bad, but because it costs more than other mount/camera body combos. The whole thing deserves 5 stars because it works very well.

This adapter adapts my Nikkor lenses to my Fuji body (X-T1). It works perfectly and looks very good too. Like the flat black and silver rim. The silver ring in the center is for aperture control, so it also works for Nikon G lenses without an aperture ring and allows you to manually control the aperture of your Fuji. My copy is a little tight on the Nikon receiving end but works very well. And since I've had a few that were too loose, I don't mind. The aperture ring is 6-7 clicks so is better than the Fotiodix version I have which is only 3-4. Not much more to say but that it works well and allows me to use all my Nikon lenses on a Fuji body. Of course, this is all manual control, not autofocus or exposure control — just a metal tube that lets you mount Nikon lenses. At this price it's a great deal and works beautifully. It wasn't available for Prime when I got it and it took me about 2 weeks to get it.

This is model K&F M18111, Adapter for Nikon DX lens on Fuji XT-3 body. High quality processing; easily adapts to the body, snaps securely and without any noticeable movement. The same goes for adopting the Nikon lens. Cosmetically it could be a bit better, but that's not a problem - just the surface. Overall it works as advertised, no problem here. For the $30 adapter price, I suddenly have a whole bunch of DX Prime lenses that would otherwise have gone unused since switching to the Fuji X camera. The same could apply to you. As an aside, and that's just for the manufacturer, because you really can't ask for more for the price: it would be great to have a plastic cap on the camera end of the adapter: that way, if the user predominantly uses one lens, they wouldn't have to each Disassemble two components when he changes lenses. However, this does not affect the advertised functionality. Note: When operating, remember to select "Shoot without lens" in the Fuji setup menu.

This adapter ring is excellent quality (all metal) for the asking price. The processing is very good with very well calibrated processing in the lens mounts; Absolutely no problems with mounting, I even have to say that the first mounting of my Sigma 18-35 f1.8 (Nikon mount) on my Fuji XT2 was extremely hard, then in subsequent uses everything goes back to normal! However, you must be careful that the mounting direction of the ring on the lens side (Nikon mount hence) rotates in the opposite direction to the Fuji mount on the other side, and because of the relative strength of the mount you must be careful to rotate the ring to hold yourself tightly so as not to force the click to lock the bracket on the Fuji body, because by mounting the Nikon lens on the ring already on the body (that is, the opposite direction On the Fuji system) we press on the Mount the body in the direction the ring will be removed so press the safety button to lock the lenses in place AND NOT ON THE END OF THE BODY MOUNT STOP where it wouldn't matter. So be careful not to foolishly damage your body through mishandling... Otherwise, the Micro-Nikkor AF-D 60mm lenses and the Sigma 10-20mm f3.5 and 18-35mm f1.8 work very well on the Fuji XT2. Also note that while the diaphragm adjustment ring on the K&F is precise, the notches in the 6 positions are very (too much?) close together. Also, the apertures obtained are random or rather unknown (so not 2.8 to the exact 4 — we use an X-aperture, which is also different for each lens, albeit reproducible each time). A habit to get used to!