Collimation was performed visually, not with Camera.
Primary mirror collimated out of focus to center ring in cross from spider
Secondary then collimated on progressively lower mag stars as in an SCT
VC200L Collimated
Top
Single 5 min sub uncropped
STL11K
Crop of four corners and center
Click on image for details of setup and
adapters
CCD Inspector Anaysis
4 subs, 5 minutes each
Collimation of four corners + Center