selecting the right focuser draw tube length

[madtuna (Steve)]

Building a newt, what is the formular for working out the correct drawtube length on your focuser?

many thanks

[Omaroo (Chris Malikoff)]

Steve - it's worthy of writing a book about....which is why someone has!

If you like, I'll loan you my copy of Krieges' "The Dobsonian Telescope - a practical manual for building large aperture telescopes" if you come to the Forest or Stargard next time around. It explains ALL.

[madtuna (Steve)]

thanks for the offer Chris.

I just bought the book

[Omaroo (Chris Malikoff)]

Originally Posted by madtuna

thanks for the offer Chris.

I just bought the book