The Porta-Jib was designed for videographers and cinematographers who need to travel light. Weighing only 29 lbs., the Porta-Jib supports a 40 lb. payload of camera and fluid head. So compact, it folds up with no loose parts and fits into a baby tripod case. Its unique telescopic design allows it to work in constricted areas and also unfold to create a dramatic 6 foot lift. It uses a 100mm bowl for tripod heads such as the Sachter 15 SB, 18 S1, and 20 SB. Like the rest of the Losmandy line, it is manufactured to the highest quality standards: all parts are anodized black machined aluminum or stainless steel. All moving parts are controlled by sealed precision ball bearings. Bubble levels are located on the center column and camera plate for easy levelling. With a weight ratio of less than one-to-one, and the sliding counterweight shaft for fine tuning, the arm can be balanced in a matter of seconds, with a limited number of counter weights.