Thanks for the explanation. I use a Lumix 5S and have several vintage lenses (Nikon, Zeiss Y/C, Canon EF). I have tried various combinations: for example, a Nikon 21mm AIS lens with K&F adapter (Nikon -L). The same lens with Nikon EF adapter together with K&F adapter (EF-L). Not working. When focusing to infinity or to an object more than 2 metres away the flip-down LCD monitor it shows it in perfect focus (I use focus peaking and magnify the image). But when shooting (high speed, closed aperture...) the resulting image is out of focus at those distances. I don't have problems with the close focus. How is it possible that the sensor information displayed on the LCD and the final file do not match in focus? Do you think your solution can work with this problem? Your solution would increase flange distance and would make impossible infinite focusing, wouldn't? And what about helicoid adapters? Could it work?
It seems like my solution might help. I had a similar issue with one lens where it wouldn't focus at infinity, which usually means that the distance between the lens and the sensor isn't set correctly (if the lens itself is fine). I recommend connecting an external monitor to the camera. When I was shooting with the Helios 44, it looked like the video was in focus on the camera screen (because the focus peaking was also highlighting), but in reality, it wasn't. With a monitor, you'll see this more clearly, and don't rely too much on focus peaking. Also, older lenses are often sharp only in the center, meaning if your main subject is off to the side, even if focus peaking highlights it, the result might still look out of focus.
Very clear, no bs explanatory video! Kudos!
You are welcome!
Thanks for the explanation.
I use a Lumix 5S and have several vintage lenses (Nikon, Zeiss Y/C, Canon EF). I have tried various combinations: for example, a Nikon 21mm AIS lens with K&F adapter (Nikon -L). The same lens with Nikon EF adapter together with K&F adapter (EF-L). Not working. When focusing to infinity or to an object more than 2 metres away the flip-down LCD monitor it shows it in perfect focus (I use focus peaking and magnify the image). But when shooting (high speed, closed aperture...) the resulting image is out of focus at those distances. I don't have problems with the close focus. How is it possible that the sensor information displayed on the LCD and the final file do not match in focus? Do you think your solution can work with this problem? Your solution would increase flange distance and would make impossible infinite focusing, wouldn't? And what about helicoid adapters? Could it work?
It seems like my solution might help. I had a similar issue with one lens where it wouldn't focus at infinity, which usually means that the distance between the lens and the sensor isn't set correctly (if the lens itself is fine). I recommend connecting an external monitor to the camera. When I was shooting with the Helios 44, it looked like the video was in focus on the camera screen (because the focus peaking was also highlighting), but in reality, it wasn't. With a monitor, you'll see this more clearly, and don't rely too much on focus peaking. Also, older lenses are often sharp only in the center, meaning if your main subject is off to the side, even if focus peaking highlights it, the result might still look out of focus.