Quote:
Originally Posted by Camelopardalis
Interesting aside that Damian Peach often chooses to image with a C9.25...the Celestron SCT with the largest diameter secondary obstruction  |
For you to even make that comment Dunk, you're learning something from this thread. viz. The size of the central obstruction has minimal to no impact for imaging. It has a much greater impact for visual astronomy. Did you actually take the time to have a look at the simulation Damien himself provided in regard to the effects of the different sized Central Obstructions?
Cheers,
John B