An exceptional value for money. Precise and metallic mount both on the optical and camera side, there are no games. You can also use lenses without an aperture ring, such as the Pentax DA series, since it has a ring that allows you to adjust the aperture manually.
I use it with a pot made up of a spiral duplicator combined with a bright fifty for the macros, which allows you to achieve the 1:1 ratio with satisfactory results.
I recommend the purchase for those who know that the operation without the contacts is exclusively manual.
For those looking for an autofocus adapter, I believe that the only one is the LA-KE1 MonsterAdapter, of which there are already working prototypes and which will soon be marketed at a certainly reasonable price.
I use it with a pot made up of a spiral duplicator combined with a bright fifty for the macros, which allows you to achieve the 1:1 ratio with satisfactory results.
I recommend the purchase for those who know that the operation without the contacts is exclusively manual.
For those looking for an autofocus adapter, I believe that the only one is the LA-KE1 MonsterAdapter, of which there are already working prototypes and which will soon be marketed at a certainly reasonable price.
18/12/2024
I bought this adapter to put a Ricoh 50mm 1.4 XR Rikenon in my Sony A7III, connected it to the first one, turned on the camera and it worked immediately
16/12/2024
I can only recommend the adapter. Fits well, no play, lens sits exactly. Works as I expected. The aperture can be adjusted in steps without specifying which aperture is set. With the alpha 6000 series you can see on the display how bright the image will be. Then simply set the autofocus to manual and have it show where the focus is. Perfect for me.
15/12/2024
The adapter fits perfectly, nothing wobbles. The aperture setting works continuously, which is completely fine. One disadvantage of the aperture ring is that it doesn't quite fit depending on the tripod (in this case, an old, large Bilora). The aperture ring sits close to the housing and is larger at the bottom than the camera housing. With a normal-sized tripod, however, everything fits without any problems.
13/11/2024
I bought this product because I already had other K&F Concept adapters for Pentax K up to M43 that I was happy with.
So I bought the Sony E adapter for my son. This now allows him to use his Pentax K lenses on his Sony A7 (operation verified with DA15, FA31 and FA77).
I chose the model with a ring that allows, by acting on the coupling lever on the mount, to adjust the aperture of his Pentax lenses without an aperture ring (for example DA15, DA35, DA55-300) and is of course compatible with the lenses equipped with an aperture ring (FA31, FA77 and F135, M50 and M28).
So I bought the Sony E adapter for my son. This now allows him to use his Pentax K lenses on his Sony A7 (operation verified with DA15, FA31 and FA77).
I chose the model with a ring that allows, by acting on the coupling lever on the mount, to adjust the aperture of his Pentax lenses without an aperture ring (for example DA15, DA35, DA55-300) and is of course compatible with the lenses equipped with an aperture ring (FA31, FA77 and F135, M50 and M28).
11/11/2024
The bayonets are a bit tight, and mounting them requires some effort on both the camera and lens sides.
The aperture control ring, on the other hand, is soft and can be easily turned with the fingertips of the right hand without taking your eyes off the viewfinder. About 1 diaphragm is lost with each click.
This is therefore the adapter to choose for J, DA and D-FA lenses, or if you want to keep the A lenses in the automatic position (for example, to immediately restore full automation when you put them back on a Pentax SLR). Also works with M lenses, but if that's all you have, there's an adapter without an aperture ring that's a bit cheaper.
The aperture control ring, on the other hand, is soft and can be easily turned with the fingertips of the right hand without taking your eyes off the viewfinder. About 1 diaphragm is lost with each click.
This is therefore the adapter to choose for J, DA and D-FA lenses, or if you want to keep the A lenses in the automatic position (for example, to immediately restore full automation when you put them back on a Pentax SLR). Also works with M lenses, but if that's all you have, there's an adapter without an aperture ring that's a bit cheaper.
10/11/2024
The adapter ring is well made and works well. The only complaint is that the diaphragm ring doesn't have more notches (7 notches between the maximum and minimum opening), but we can live with that. Of course, the problem doesn't occur with lenses that have a diaphragm ring, but don't forget to leave the adapter ring in the most closed position.
09/11/2024
The adapter is very high quality and connects easily to the camera and my analogue Agfa lenses. A (less high quality) plastic case is also included. Clearly recommended!
08/11/2024
Seems very solid, autofocus works quickly and reliably on my XT30ii with Sigma 18-35. I can recommend it - especially for the price.
31/10/2024