Quote:
Originally Posted by gregbradley
Personally I am leaning the discussion more towards imaging rather than visual.
|
If equatorial mounts were sold for free then nothing would beat a Newtonian dollar for dollar. Being that they are not, the equation slews more towards the RC and corrected DK designs.
If narrow band imaging is the intent then the fastest focal ratio wins.
Refractors are unchallenged up to 4" of aperture, but pretty much untennable (from a cost/performance basis) beyond a 6" objective.