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Old 15-05-2015, 04:21 PM
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OzStarGazer
Nerd from Outer Space

OzStarGazer is offline
 
Join Date: Nov 2013
Location: Next to my scope
Posts: 1,091
Quote:
Originally Posted by Renato1 View Post
But, assuming the specs I looked up were correct and the focal length is 650mm, then a 6mm eyepiece only delivers 108X. It's better than nothing, but is still ultimately low power for the moon and planets.
Unfortunately yes, you are right. I actually got pretty close to the moon, but planets look really tiny, even with the 6mm ep. AND the images are pretty dark because for clear images at high magnification you just need more aperture.
Even higher magnification without tracking can be even more problematic. I use the Neximage 5 with my refractor (also small) and while I can get very close to the moon and on good nights it looks fantastic, it disappears from the screen super quick, so even when the weather conditions are good or excellent with hardly any turbulences I just see a few big craters drifting across the screen for a few seconds and have to constantly recenter.
So unfortunately small scopes without tracking have limitations in terms of aperture, no tracking etc. and 6mm is probably the limit on most days.

Last edited by OzStarGazer; 15-05-2015 at 04:49 PM.
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