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Old 02-04-2019, 06:51 PM
Wavytone
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Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Pros of reflector - zero chromatic aberrations, bigger aperture for a given budget; fast f-ratios possible on a budget;

Cons - collimating the optics from time to time; central obstruction reduces image quality at high power (for f-ratios 5 and under); diffraction spikes on bright objects; mirrors are more likely to collect dust requiring occasional cleaning; may need a coma corrector (f/5 or less) and/or flattener for imaging.

Eyepiece position... depends on what you prefer.

Stretching your budget a tad = http://www.astroanarchy.com.au/teles...y_130x650.html

Or http://www.iceinspace.com.au/forum/s...d.php?t=174423 and wait for a small mount to turn up.

Last edited by Wavytone; 02-04-2019 at 07:04 PM.
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