Actus Alpa Short Barrel Lensplate ACTUS DB2 Monorail Modular is the keyword

Modular is the keyword

and the monorail and bellows is also interchangeable with optional wide-angle and longer versions of each

Short Monorail for Ultima

+6/-6 degrees

Actus Alpa Short Barrel Lensplate ACTUS DB2 Monorail Modular is the keywordACB ALP Lensplate with Alpa mount for Actus DB This lensplate allows you to mount lenses fitted on an ALPA lens panel, in combination with the ACTUS DB view camera. The useability of the ACB ALP is depending on the total setup for setting at infinity and movements. Best option is the short barrel 34mm version, second best option the short barrel 17mm version. Long barrel lens panels can be mounted, but will not focus at infinity, only close up.