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celestron powerseeker 127 colimating
Hi all,
I was just wondering if anybody knows how to colimate a celestron powerseeker 127 telescope? I just got an old one and have no idea how to colimate because of the inbuilt Barlow in the focuser!
I have to take the primary mirror out and clean it as it is pretty grubby, but it looks like it is held in with nuts on the inside, which means I will have to remove the secondary mirror assembly so I can hold on to them, i hope im wrong. And maybe remove thos Barlow lens somehow, colimate and then put the Barlow back in without bumping the secondary mirror again.
Has anybody got this scope or ever collimated one like it? Any advice would be so greatly appreciated.
Thans
Dan
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