Today I started to design the adapter that will connect the Nikon camera to the Pentax 645 lens. I have divided it in two different devices to get it easier to 3D-print.
Here is a prototype of the end of the adapter that connect to the Pentax 645 lens:
http://www.astrofriend.eu/astronomy/...ikon-d800.html
The camera and the lens weights 2.7 kg together, I'm not sure if the strength of the adapter will be strong enough.
Lars