hi everyone,
fistly i'd like to say i'm a complete newbie at this so please forgive any ridiculously stupid questions i ask.
i just bought an etx 90EC, but it only came with the standard 26mm eyepiece, how do i calculate the magnification of an eyepiece( i thought it was lens diameter/eyepiece diameter, but was told it was more than this) and what sort of size eyepiece would ppl recomend i try to get optimum strength, without it being too hard too align, (i'd like to be able to see saturn in some detail if thats possible!)
thanks in advance for any replies.

• ETX 90EC - midstar - December 14, 2008 - 21:20 UTC