I have an SX40HS that has served me very well.
I just noticed some dirt on the glass interior of the lens, between the movable portion of the lens and the fixed portion. Is there a way to remove the movable portion so that I can get in there and clean it?
There might be a YouTube video about it. My gut feeling says no, though. It is my understanding that those lens assemblies are constructed like Gordian Knots. Once you remove the critical component, the entire assembly may come apart like a house of cards. You would need far more than two hands to hold everything in place as you reassemble it.