Posted 26 September 2013 - 11:05 PM
Posted 26 September 2013 - 11:48 PM
There is no 'best' design for AstroVideo.
What is important is 'Fast'. f5, f4, f2 etc.
The faster a focal ratio the better, but some people get good results with 'slow' scopes (f8, f10 etc).
For Video, people use Refractors, Reflectors, SCT's, Camera Lenses, Security camera lenses, Finderscopes, etc.
Focal reduction is recommended but not essential. I've seen some great results with scopes at f10.
But the faster you go the wider the Field of View and the brighter the objects appear, and also shorten the integration times needed.
Have a look through the Video Gallery in here and many photos name the scope that was used. Some also say all the filters, Focal Reducers etc used.
That way you can see which scopes can do what and with which camera.
Also depends if your main interest is Deep Space Objects or Planets and Moon.
Different scopes do different jobs, and different Focal Reducers give different results.
I could hightly recommend an ED80 as a fantastic scope, but if you suffer bad light pollution it may not be good in your area.
Some could also recommend an SCT with Hyperstar but they are very expensive.
It's a tough question to answer without knowing your preferred targets, sky conditions, or Budget.
Posted 27 September 2013 - 10:47 AM
Posted 30 September 2013 - 07:48 PM
Posted 30 September 2013 - 08:06 PM
Only change I've made to my set up from when I took this picture was to replace the red dot finder for a 50mm right angle correct image finder.
Posted 30 September 2013 - 08:23 PM