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Old 20-11-2011, 05:26 PM
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Jason D (Jason)
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Jason D is offline
 
Join Date: Aug 2009
Location: California USA
Posts: 117
You are looking at two different readings. Barlowed laser tells you how accurate your primary mirror is aligned. Unbarlowed laser (forward laser) tells you how accurate your secondary mirror is aligned.

Based on your data, your primary mirror looks good but your secondary mirror is off.

Re-iterate. Align the forward laser by only adjusting the secondary mirror then align the donut shadow on the face-plate by only adjusting the primary mirror. Back and forth until both are aligned.

Jason
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