Quote:
Originally Posted by erick
My understanding is that if you get the tilts of the mirrors right (and the rotation of the secondary) then you should get sharp image which is the first thing you want. Any probably that is the most important outcome you want, to start with. If, however, you are achieving this without seeing the full primary mirror reflected in the secondary, then you are likely losing some of the light that is being reflected off the primary. The effect of this is to slightly reduce your limiting magnitude??
|
Had wondered if this was the case. Unfortunately all the images im seeing in secondary look sharp to me.