SC-2D
If you have a narrow pitch you might be interested in using a spidercam® 2D.
By pairing the lifting cables and leading them from the winch to the dolly a close parallel setup the spidercam® can be used like a regular point-to-point system.
The spidercam® advantages remain: There is still a very low strain on the pulleys, and the dolly can be lowered to ground level.
PDF-Download (Features and Specifications)