https://www.cambo.com/en/view-cam/actus-xl/There has been very little of discussions on Actus XL, in reality it is a Cambo Ultima base, but with the lens and image area frames of the Actus "mini" and the Actus "mini DB" adapted on the ultima.
There are some advantages (and only some minor disadvantages) on the system that are hard for the knowledgeable photographer to overlook at:
-It is the only bellows camera in the market where one can adjust the entrance pupil of the lens as to be positioned at exactly the center of the circle of which the tilt arc is part of,
-It is ready to work without further adaptation with mirrorless MF cameras (only a mount required for the Fuji GFX to be adapted on it
-The lens frame and collection of lenses can be retained for all FF (and APS-c) mirrorless, MF mirrorless & MF backs the same.
and the (minor) disadvantages:
- The side sift mechanism is (wrongly) positioned above the swing mechanism. This means that if the two movements are combined, the entrance pupil of the lens will be de-centered with respect to the image area. The issue is overcome-able if one only "swings" on the front standard and then side shifts on the rear (in case there is need for the two movements to be combined).
- The sliding frames are difficult and time consuming to adjust back and forth.
- The values of movements are less than the competition. (but enough for most cases)
- There is no provision for a mechanism that tilts the standards with respect to the rail for when the rail is used at an angle. (can be an issue)
- The camera isn't compatible with image areas larger than 5x4 film (5x7, 8x10). (it concerns only a few users)
Still the best camera around as it is the only one that the (knowledgeable) user can retain distortionless operation even if he decides to stitch UWA images of close focus subjects (call me extremely demanding interior architecture) by swinging the camera on its base, yet retaining extreme accuracy and completely distortionless operation. I believe that there is no other camera that can do that... Perfect for demanding panoramic photography too (it will beat all any top quality panoramic base at no extra cost)...