Has anyone found that the Voigtlander 10mm with the Techart Pro is more temperamental in focusing than other lenses? My experience is that with good light and sharp edges it works very well but where there is less contrast it can fail to find infinity focus, especially if on f8 or f11. over the weekend i often found myself looking behind me for a building or some other manmade object to get infinity focus, and opening up to 5.6 just to focus. It was important to check the focus on each picture after taking it. Manual focus is difficult because you need to get the adapter parked in just the right position, which is hard, and i am tempted to get a manual LM to E-mount adapter too, just for when i want manual focus.
But overall, i am still very happy with the way it works. it still seems amazing that it does autofocus as well as it does. and with "long" lenses, like a 21 or 24, it seems to nail focus every time except for when there is user error.