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Celestron screw specs

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#1 Chuck Hards

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Posted 25 February 2020 - 11:37 AM

What size screws are used to hold the front and rear cells onto the Celestron 8?  Length as well. 

 

Looks to be an orange model but can't tell for sure, it's been repainted flat black overall.

 

Thanks in advance.


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#2 apfever

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Posted 25 February 2020 - 12:36 PM

Be OH so careful and also for newbies:  Any screws in the rear cell can go all the way through and hit the primary mirror and bust up the glass. Length on these are custom depending on what they hold. Things with a thick flange will have longer screws,  thin things will have shorter screws, and just the cell mounts probably the shortest.  It is possible to intall a screw that is too long by missing the primary, then hitting the glass into the screw when focusing.  Nuff said, learn about it.


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#3 Chuck Hards

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Posted 26 February 2020 - 03:48 PM

I mentioned length, was concerned about primary mirror strike.  Just hoping someone knew the right thread off the top of their head, would save me some time.  No worries.


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