Quote:
Originally Posted by mental4astro
$39! They've come down! Don't often see that with retailers.
Your 10" dob is f/5? If so, a 40mm EP is too long for your scope. You'll begin to see the shadow of the secondary mirror. The 30mm would be a better match.
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Its a f/5 so a 30mm it is thanks it seems cheap but I trust your judgment good bang for the buck