I'm thinking about buying a Horseman 612 camera, either the Pro model, which has some rise and shift, or the standard w/o those features. I'm also thinking of the 90mm lens rather than something wider. My primary interest is in the 6x12 format, which I find very pleasing. I already have an SWC for super-wide shots. Have any of you used a Horseman 612 or 617? What about lens choice? Your comments will be much appreciated.