SCT..???? have 30 years of aggressive marketing by Meade and Celestron totally brainwashed the community?
I will repeat what I have said in another thread:
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After all Phil Harrington has this to say about SCTs in "Star Ware" (quote reproduced from another forum)
"What about optical performance? Here is where the Schmidt-Cassegrain telescope begins to teeter. Due to the comparatively large secondary mirrors required to reflect light back toward their eyepieces, SCTs produce images that are fainter and show less contrast than other telescope designs of the same aperture. This can prove especially critical when searching for fine planetary detail or hunting for faint deep-sky objects at the threshold of visibility."
"Image sharpness in a Schmidt-Cassegrain is not as precise as that obtained through a refractor or reflector. Perhaps this is due to the loss of contrast mentioned above or because of optical misalignment, another problem of Schmidt-Cassegrains."
Unquote
a lot of people believe that this to be true of most SCTs--the exception-
possibly -being the Celestron C9.25, the scope that Chris Venter, Robbie and Damian Peach (not a member of this forum) use..some people consider this the only SCT worth investing in...
Newt and refractor owner myself!!!