Hi I am newish to this hobby...so please bear with me on this regarding terminology......bought a Williams 81 and now have it mounted on an EQ5 mount...with hand controller. I have a Canon eos 60D to use for planetary imaging. The problem is Jupiter when viewed via the camera is very distant...Thought was by a 2" Luminos barlow lens. Well fitted it all up this evening and could get nothing at all via the camera....Im missing something here as this is the third night with nothing to show for it.....Question is do I need a lens to fit inside the barlow? or do I need spacers? I have plenty of patients but its very frustrating or getting to be.......any help would be appreciated.....many thanks