Group Chief project
Posted 01 January 2014 - 11:27 AM
Posted 01 January 2014 - 12:40 PM
Posted 01 January 2014 - 02:15 PM
Posted 01 January 2014 - 03:56 PM
Posted 01 January 2014 - 04:33 PM
Posted 01 January 2014 - 06:45 PM
Posted 02 January 2014 - 02:10 PM
Posted 03 January 2014 - 12:58 PM
Posted 03 January 2014 - 04:17 PM
The prospect of designing and building one of these from scratch is too daunting to me to undertake in any foreseeable future, especially since I don't make mirrors or lenses, but if it could be reduced to what is in effect a "kit" then the it becomes quite doable.
I think 10" is a good aperture for what I think of as a "planetary scope", big but not too big. A 17" would be an entirely different beast, and still daunting even in kit form, and far more $$.
I would have to have a mirror supplier who would make one to the correct spec. How sensitive is the design to the focal length, given the variability in FL that mirrors are prone to have? Probably for this project I would want to get a Zambuto-made mirror to get the best possible performance.
Posted 04 January 2014 - 06:58 AM
Posted 05 January 2014 - 07:25 AM
Posted 05 January 2014 - 10:08 AM