I'm currently using this barlow with a T-ring for Nikons to connect it to my DSLR and shoot through my signature telescope, cause else it isnt able to achieve focus:
Im thinking of purchasing a Televue Powermate x2,5 due to its superior glass quality (i guess) than my existing barlow and to give a small boost to magn (from x2 to x2,5).
Do you think it has the same effect as my current barlow that is help me achieve focus on my dslr? Or powermates dont work this way?
Also i ve found i need this item:
to connect to powermate, and this to my T-ring and DSLR, is my thinking correct?