I must admit that the system I use is the arca swiss that is similar to the Actus, but not the same afcourse.
On arca 55 mm, 47 and 35 mm schneider work well- for sure. so when even schneider 35 mm works so I thought there should be no problem with roddy 45 mm...
Did you think that with the 45 mm there is the problem in the length of the rear element of the lens or is the camera construction the problem?
The problem is in the camera construction and in the rear element's size, in the diameter and the length. The diameter of Rodie 45mm rear lens is 60mm.
In the Actus' rear standard there is a rounded 51mm hole. :facesmack:
With smaller lenses you can focus so that the lens is in the rear standard (with limited movements), but not with 45mm Rodie.
So Actus' rear standard and camera mount ads ~ 12mm flange to Sony 18mm body flange. That is too much for 45mm, but 55mm and 60mm HR should work. I guess the tilt is limited.
The lens compatibility chart is downloadable here:
https://www.cambousa.com/downloads