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orion mirror question

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#1 csrlice12

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Posted 17 August 2014 - 12:05 PM

I just cleaned my primary on my 10XTi.  It throws out some nice views.  My question is the "finished" surface is not centered on thr blank.  One side of the blank has a wider edge then the other side, which has a narrow edge.  The centermark appears to be centered on the finished portion, not the whole blank.  Any ideas how this could induce abberations, or is this fairly normal?  When collimated, I've used as low as a 2.5mm in it with no problems....



#2 Rod Kaufman

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Posted 17 August 2014 - 01:25 PM

If you're getting good views with a 2.3mm eyepiece, leave it alone.



#3 herrointment

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Posted 17 August 2014 - 02:16 PM

If you're getting good views with a 2.3mm eyepiece, leave it alone.

 

Are you insane? 

 

This unevenness may cause an imbalance in the photonic humours.

 

My hacksaw is available for investigative purposes at any time. 


Edited by herrointment, 17 August 2014 - 02:16 PM.


#4 precaud

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Posted 17 August 2014 - 02:37 PM

The bevel on the two 10" GSO mirrors I've had both were uneven. The mirror center is still the center of the blank.








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