The quality of K&F Concept is indisputable, there are better brands, but the ratio, quality/price, is difficult to beat.
This adapter, has allowed me to use after many years, my old lenses of my analogic Asahi Pentax SP II, handheld lenses very good, to be able to use them with better machines.
greetings
Pros: All
Cons: None
This adapter, has allowed me to use after many years, my old lenses of my analogic Asahi Pentax SP II, handheld lenses very good, to be able to use them with better machines.
greetings
Pros: All
Cons: None
13/09/2022
I was able to use my old lens (Prakticar f 70-210) from my old analogue camera with the adapter.
It doesn't have autofocus, but manual is fine too.
It doesn't have autofocus, but manual is fine too.
13/09/2022
Unfortunately, the massive ring of the M42 on EF touches the AF contacts of the Viltrox Speedbooster and causes me to get an error message on my GX9. This problem does not occur with the P/K on EF from K&F because it has a slimmer design. Therefore 2 stars deduction. A successor to the adapter should have a recess at the height of the AF pins, I'll see how I can DIY my adapter.
12/09/2022
Tremendous product. I was using my usual, cheaper, adapter for a newly purchased Takumar 50mm/1.4 and it tightened the lens up to the point where it was impossible to reach infinity and still move the f-stop. This adapter resolved the issue immediately, it felt like a much better fit and a much more professional product. The lens now moves freely and works perfectly - think I'll probably upgrade all my M42 adapted lens to this stirling effort.
12/09/2022
Well made product, it works optimally. Beautiful presentation in the dedicated box. To the touch you can perceive the quality and the excellent workmanship of the workmanship. Indispensable for lovers of vintage lenses.
12/09/2022
The thing is solid, I use 5D with helios attached to it, I can use it without any problems, but the infrastructure did not come, it is dedicated to portraits.
12/09/2022