I like reflectors, and especially dobsonians, for their ease of setup and use. I have always preferred the eyepiece-at-the-top-&-angled kind of design ergonomically, and the general dobsonian design, with the weight at the bottom of the tube, cannot be emphasized enough how wind resistant it is compared to a refractor's flying in the air like a flag setup. This comparative difference was demonstrated to me Saturday night, when I had out my SW6" for its maiden sky-voyage and an often-used Kunming 102mm F/7 refractor on the GSO SkyView Deluxe Alt-Az mount. Although it wasn't very windy that evening, we still had some, and every wind produced a light dance in the refractor, and only a little wiggle in the dobsonian, which dissipated much, much more quickly than the spasmodic gyrations of the image in the refractor.
I will have to decide if I want to sell my most excellent Z8 and replace it with a GSO-10"-dob-and-Coma-Corrector or not. That's a different story, and would involve comparing dobsonian performance to 6"+plus refractors, which are, to my line of thinking, insane and off the table, cost and mount options considered. But I believe the stories I've read here on CN, that a 6" reflector can keep up, visually, with 5" ED refractors. I've seen for myself how much better Saturn appeared one evening long, long ago, in a LB8" dob compared to an Orion 120mm ED scope. No comparison, really, the 8"-er was that much better, so I'm sure one would have to move into the refractor stratosphere to continue competing with dobsonians above 6", and why I'd never own such a refractor. But the SW6, especially if I can upgrade the rather inferior Synta 2" rack and pinion it comes with, puts all the performance of a 120-127mm refractor into an easier to manage, more stable package, at a fraction of the cost.
Edited by CollinofAlabama, 07 May 2018 - 09:57 PM.