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Old 22-09-2011, 07:03 AM
ausastronomer (John Bambury)
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ausastronomer is offline
 
Join Date: Mar 2005
Location: Shoalhaven Heads, NSW
Posts: 2,620
Quote:
Originally Posted by mercedes_sl1970 View Post
Hi - I had a look at the photo and it looks like a small dab of glue to stop the retaining ring from moving? But others may have another opinion.

Andrew
I agree 100% with Andrew. I would even go so far as to say it looks like a dab of "superglue". Basically just to stop the retaining ring working loose, which they can do.

Cheers,
John B
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