Quote:
Originally Posted by atalas
Yeah your not kidding Peter....still scratching my head on how the stars are so tight with the 16" 
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Ta Louie...as to why...
Probably due....
- Zerodur optics.
- Temperature controlled, zero focus tilt, secondary mirror focuser.
- Auto-thermally controlled OTA cooling fans.
- Guide chip next to the imaging chip in the same camera head.
- imaging in a dome = no wind buffetting
....some boofheads would say "but it's so expensive" ...and they'd be right
...but hey, to make an omelette, you may have to break some eggs
As to how many you break...well...