I got a 17mm Plossl and 40mm to go along with the 10mm & 25mm EP's that came with my 8" Skywatcher.
Im new(only 5 nights viewing) and not sure if this is a dumb question, but the 10mm seems to be not as crisp a view as the 17mm and 25mm.
Would this be due to the quality of the supplied 10mm EP, or another factor with high zoom and limited focus?
I'm wondering if an alternate 10mm EP would be better than the one that came with the Skywatcher Dob.
