Best Wide Field EyepiecePosted By Tom Pico |
I find that it's really hard to get decent wide field views with the f/10 scopes. I have a C-9 1/4 and with a 55mm TeleVue plossol I get 43x and a 1.16 deg. true field. That's ok, but for real wide field/low power views a 17mm Nagler in my 4" Borg f/6.4 gives 37x and a 2.2 deg. true field - double the true field of the C-9 1/4 - and a very pleasing rich field view.
You could probably mount an inexpensive 80mm f/5 scope on your C-8 and using an inexpensive eyepiece, for example, a Borg 22mm widefield (70 deg. apparent field) you'll get 18x and a 3.88 deg. true field -- a real rich field view at a very reasonable price. They views with a 80mm are not as good as a 100mm (duh!) but the price is right and you don't need another mount.
You could probably mount an inexpensive 80mm f/5 scope on your C-8 and using an inexpensive eyepiece, for example, a Borg 22mm widefield (70 deg. apparent field) you'll get 18x and a 3.88 deg. true field -- a real rich field view at a very reasonable price. They views with a 80mm are not as good as a 100mm (duh!) but the price is right and you don't need another mount.