IoC and Encapsulation

Hello,

I'm not sure if this is an appropriate place for this question, but since the containers involved are mostly based on the IoC principle
I figured I would pose it here anyaway. I apologize if it's not the proper forum.

If I have an object (myObject) that uses a few other objects 
according to IoC I would like to create these objects outside to 
enforce the isolation of my object. 

By forcing the client to create these objects I force it to know more 
than it has to just to isolate myObject thus violating the principle 
of encapsulation.

What are the best practices for using IoC?
Should I use default values for clients with simple needs?
Should I use a convenience factory method?
Should I use a facade like class to hide my internals?

Any thoughts are appreciated.
Regards
Anders