This articulating borescope has a fantastic picture is easy to use articulates well, however it has a non-rigid camera probe that does not hold its shape so you have to rely on it to lay in a pipe or a duct and then push it along. So you can imagine it's like pushing a string through a pipe not good at all in that manner. The last one I bought had a rigid camera probe so you could put it in a shape and get it through a pipe or a duct work with no issues.