I am new to this forum. We purchased a Orion Starquest. 14”. Focal length: 1650 mm. 356 mm aperature. f/4.6: originally we have the set of ep’s we got along with the scope and wanted to look at updating.
we were told to get the Paracorr; 31 Nagler; 17 Ethos; 10 Ethos and possibly 6 or 7 Delos or Naglar.
other people said to get the Delos. We have read the info on the Ethos 100FOV and would like to experience, we do not know anyone who has any to try.
A good general purpose focal length for that scope would be something like an 8, 9, or 10mm eyepiece.
If you have the funds, the 8 Ethos, 10 Ethos, or 9mm Lunt/APM XWA, or 9mm Explore Scientific 100 would be a fantastic general purpose eyepiece for everything from planetary observing (when the atmosphere cooperates), to viewing most DSOs.
M82, M27, M13, M3, M51, and many other similar sized objects look stunning in my 8 Ethos in my 12" F/5 dob and 15" F/4.5 dob.
Lean towards the 8 if you want more magnification and a slightly dimmer view, lean towards the 10 if you want less magnification and a slightly brighter view. IMO, the greater magnification is more beneficial for most objects, but it's really a matter of preference.
Note that an 8mm or 10mm Delos would work as well, just the view is a bit less immersive.
But that focal length range (8 to 10mm) would be where I would start with the upgrades. A good quality wide angle in that focal length range will be extremely versatile.
After that, you can decide if you want to go with a lower power wide angle for bigger targets, or go with even more magnification for small targets like planetary nebulae (which can handle mags up to 1,000x in a 14")
Edited by CrazyPanda, 13 August 2019 - 08:27 PM.