The Contax Auto Extension Bellows are one of the most advanced of its type. The bellows attachment features full coupling of the lens to the camera body for close-up photography or slide copying. Along with the ability to take extreme close-ups at large magnification ratios, this unit also features slide and swing adjustments of the front standard for perspective and depth-of-fleld control. Complete coupling is achieved via the Shutter Connector Cord. The Auto Bellows PC has swing and shift capability to correct alignment errors. When this bellows unit is used with the adapter rings 52mm, 55mm or 67mm(optional) allows the lens to mount in either normal or reversed position. The front standard can also be detached from the bellows section and rotated 360° for reverse-mounting of lenses. Special swing actions of the lens board enable perspective adjustments. Vertical camera mounting is also possible. Accessories include slide copier, macro stand, focusing rail, and wide range of close-up attachments.