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Originally Posted by pk_wizard66
Thanks everyone,
one more question,
should i get the 8" collapsable or 8" solid tube?
whats the difference apart from storage and transport.
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I'd encourage you to spend some time in an Astro Store and look at the two in person and ask that question to the store people. A positive point can be made with either and it largely depends on your vehicle and your brawn (for the scopes not so much weight as bulk)
Collimation is a fancy way of saying "mirror alignment"...it is something that should be done before use with all reflecting telescopes. Practice makes perfect...don't fear it, once you get the hang of it it becomes second nature. Think of it like playing a musical instrument...you need to "tune it" (at least check) each time you get it out to play. Playing in tune sounds better than not being in tune...same with mirror alignment...views are much better in a properly collimated scope.