From hell! Solid and well designed, my age 18-55 fits perfectly! The only thing missing is a fully automatic version and that would be Nerdasm ;-)

An exceptional value for money. Precise and metallic mount on both the optical and camera sides, there are no games. You can also use lenses without an aperture ring, such as B. the Pentax DA series, as it has a ring that allows you to manually adjust the aperture. I use it with a pot consisting of a spiral duplicator combined with a light fifty for the macros, so you can get the 1:1 ratio with satisfactory results. I recommend buying it for those who know that without the contacts, the operation is entirely manual. For those looking for an autofocus adapter, I believe the only one is the LA-KE1 MonsterAdapter, which already has working prototypes and will be marketed soon at what is sure to be a reasonable price.

I can only recommend the adapter. Fits well, no play, lens fits perfectly. Function as I thought it would. 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 the image is getting brighter. Then simply set the autofocus to manual and let the display show where the focus is. Perfect for me.

With adjustable aperture, very clean workmanship.

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).

Fits perfectly I've actually tried it with several lenses. Lenses with a simple PK mount also work well. In this case, make sure you set the aperture ring of this adapter to the narrowest and controlling aperture over the original aperture ring on the lens. The reason for this is that the original aperture ring allows you to choose half-stops. With this adapter you can set full stops. When used with a DA/D-FA adapter, the aperture is set using the adapter's aperture ring. It allows you to set full stops. Better than nothing and it spins smoothly, with light clicks. The construction is of high quality, the interior is matte and non-reflective and comes in a beautiful box. The E-mount portion snaps comfortably into place, no hassle there. The PK side is a little tight on certain lenses, but as a benefit it doesn't wobble at all. Recommended!

The bayonets are a bit tight, assembly requires a certain amount of effort on both the camera and lens side. The aperture control ring, on the other hand, is soft and easy to turn with the fingertips of your right hand without taking your eyes off the viewfinder. Approximately 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 leave the A lenses in the auto position (e.g. to instantly restore full automation again when you remove them back to a Pentax SLR camera). Works with M lenses too, but if you only have those there's an adapter without an aperture ring that's a bit cheaper.

The adapter fits snugly on both sides, but not too tightly in the bayonet. The aperture ring for lenses without their own has a slight grid, is easy to grip and can be adjusted comfortably. Since it has no translation, the adjustment path is quite short. In fact, my only criticism would be that the red marking on the lens side was glued about 5 mm next to the actual attachment point of the bayonet. But since I already had that in my blood the second time I changed the lens, it's not worth a full point devaluation for me. Overall I think the adapter is too good for that.

The adapter fits perfectly, nothing wobbles. The aperture setting works continuously, which is perfectly okay. Some disadvantage of the aperture ring is that it doesn't quite fit depending on the tripod (in this case the old big Bilora). The aperture ring sits close to the body and is larger towards the bottom than the camera body. With a normal sized tripod everything fits without any problems

The adapter does exactly what it is supposed to, namely to use my Pentax lenses on my Sony. The adapter's own aperture ring is particularly helpful because the lenses do not have their own.