The first piece of my 3D puzzle arrives...
1.8kg weight, small axis 160mm, messured Strehl 0.99, RMS=1/60wave, I think relative to my available budget, I get the best scondary mirror I can afford.
1.8kg weight, small axis 160mm, messured Strehl 0.99, RMS=1/60wave, I think relative to my available budget, I get the best scondary mirror I can afford.