The ARCA-SWISS M-Line two is the &quotmonolith&quot for the digital photographer KB version / dslr cameras. The difference to the flagship sister product is above all one of weight.

The ARCA-SWISS M-line two slr only weighs 2300g ( without dslr).

Weight savings have been brought about, among other things,by constructing the M-Line two exclusively for &quotdirect&quot adjustments.

The range of possible adjustments is, however, enormous:

The dslr can be shifted horizontally by 70mm. 
Well-defined quicklocks in the zero position
and at intervals of 20mm help you to make precise adjustments.
The vertical rail travel is likewise 70mm.

The lens can be tilted by 45° up and down from the horizontal.
In the horizontal axis, the orbix metric, a legend in its own lifetime,
comes into its own. Fine-scale adjustment is used to
adjust the Scheimpflug point by as much as 30°. 
Quicklocks set every 3° also help here.

This camera has adapters for Nikon, Canon and Sony.
I recommend ordering the V-holder (or L-holder) that you will need for vertical
photos at the same time.