NormanHarley wrote:
No, can't focus to infinity with any of my lenses on my PB-4. I also have to use a PK-13 extension ring on the back of the bellows so my digital cameras will clear the frame of the bellows. It ends up being a high magnification set up, but it works very well for focus stacking. The rails are solid and move easily. I haven't used the swing feature very much, mainly just played around with it, I normally use it as a straight bellows for very small objects.
You might have fun playing around with the tilt--Say, by shooting small objects on a table top, and aligning the depth of field with your table top, as oppose to parallel with the "film" plane.