Excellent product. Very good value. A great way to bring new life to an old lens. I am impressed with the quality of the K&F Concept and the service I received.
11/06/2023
Okay, I totally misunderstood what this was. Thought it was an EF-M mount, rather than an adapter. So, I can't use it yet. But it's the usual K&F quality, and buyer's experience. Comes packed like fine jewelry. And, the price is nice. K&F is usually a little pricy in the lens accessory category, but this adapter comes in pretty competitively in that department, compared to my other adapters, mounts, and brands of them. K&F for the win.
02/06/2023
In my opinion, K&F-Concept is the best of the inexpensive adapter manufacturers. The M42 adapter goes slightly beyond infinity (positive for me) and you can turn the M42 thread insert by loosening the Allen screws (Allen 1.3mm) so that the labels on the lens (depth of field scale, aperture scale, distance) are aligned exactly upwards. I would definitely recommend it. I use various K&F adapters (M42, Exakta, Canon FD) and am really happy with them.
25/05/2023
It is an adapter for old lenses that use M42 (pink) to Sony and that does not keep anything secret that cares about electronic contacts. However, it is not advisable to buy any adapter, even if it is more expensive because it can give you holes and not adjust well. This KF Concept stands for perfection, well built (totally metal) and aesthetically very good. I am a user of various adapters of this brand and I am very satisfied. Totally recommendable
22/05/2023
Received today, very sturdy build compared to cheaper options. Would highly recommend for putting old lenses to use.
08/04/2023