[Danack (Dan Ackroyd)]

Hi,

I currently have a 130mm skywatcher newtonian that I would like to attach a dslr to, but I need a lower profile focuser to achieve prime focus.

I could get one that's explicitly designed to fit a 130mm newtonian, but I'm planning to upgrade to a larger tube at some point in the future.

Would I be okay to get one that's designed to fit say a 170mm tube and then say sand out a piece of wood to act as a filler for the gap, or is there something in the design of low profile mounts that would stop that from working?

cheers
Dan