Quote:
Originally Posted by DavidK
I have a range of EPs and diagonals that were used for refractors.
Mostly 1.25", a couple of very nice 2" EPs.
I've just bought a 8" Celestron SCT (via this site).
I'm wondering if I should be wanting to use the 2" EPs with this scope.
Will 1.25" EPs use all the light the scope collects?
David Kinston
Vic 3162
0414 637999
|
Hi David,
If you have some nice 2" EPs, there is no good reason not to use them. If the scope currently only takes 1.25" EPs, the scope can easily upgraded to take the larger size. Give Bintel or any other trusted dealer a call re this.
With regards to the EPs using all the light that the scope collects, this normally relates to the Exit Pupil of the EP. The 2" EPs may give a larger exit pupil if they are low powered.
2" EPs can also have the ability to provide wider fields at lower powers, which are great for scanning the Milky Way etc; depending on their design.
My best advice is just try the EPs and see what U like using.
Bob.