Pentax Autobellows with 58mm Rokkor on M42 thread reversing ring.
Camera is mounted using a Vivitar M42 to T ring with a Minolta AF T camera adapter.
This well made bellows has an integral tripod slider.
The rear standard has a right angle where it joins the base that conflicts with close mounting
with the large 7D, so a slight extension in the mounting arrangement is required.