[ATM] Building a 6" f/5, would like some input

["JM O'Neill" <hanabi@cox.net>]

Hi folks,

 

  I'm currently building a 6" f/5 reflector would like some input

from those more experienced than I. First scope and all.

  I have been using "The Dobsonian Telescope" by Dave Kriege 

and Richard Berry as my primary reference and 'Newt' as a design

tool.  Right now I'm trying to decide on a secondary and based on

calculations from the book, a 1.52" secondary is called for.  When

I run my numbers through Newt, a 1.3" would appear to work.

 

My Newt file can be found at: http://members.cox.net/hanabi/files/6_INCH.NWT

 

Any help would sure be appreciated.

 

Joe O

 

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