Quote:
Originally Posted by Jason D
Hello Ray,
Based on the collimation photos, there is not vignetting. Had there been vignetting by the OTA opening edge then the intruding OTA edge reflection would have appeared in the primary mirror.
Jason
|
Hi Jason. Yes it does look pretty good.
The back projection test in this case would mainly be a confirmation that everything is spot on. It is great for peace of mind to see the light and shadows in the right places - possibly worth 10 minutes of effort.
cheers Ray