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Old 16-01-2007, 09:06 PM
Bucky1379
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Bucky1379 is offline
 
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 27
Celestron Powerseeker 127 collimation advice needed

Hi

I'm old (51) but new to taking this "stuff" more seriously and am after some advice.

I recently bought a short tube Celestron Powerseeker 127 (due to portability, price and a good review I saw) but I believe it is in desperate need of collimation. The potential troubles I've found so far in doing this (and I've never done it before but want to) are -

1. With the additional lens mounted in the focuser to lengthen the effective focal length, I can only use a short length Cheshire/sight tube (I'm looking at getting the Andrews)

2. I haven't bought that yet because all I can see through the focuser anyway is the secondary and the spider arms. There is no sign of the edges of the primary or clips.

I am willing to centre spot the primary but I'm worried that I won't be able to collimate it myself anyway due to it's configuration.

Can anyone offer some advice?

Thanks for any help.

Steve Ma****er
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