This is actually asking for advice on equipment and observing DSOs. I have a large bias for refractors! Vanilla, chocolate, strawberry and 30 others. The 120 is pretty bad on brighter stuff with CA, I can only imagine the 150.ġ0" Dobs only made me wish I dragged out my 12" though. As time passes, I'm glad I left the 150 behind. When I got my ST120, the seller also dragged along a 102mm and 150mm f/5. cooling and moving are considerably harder Does better on planetsġ2 inch dob I have it now. (had it) Plenty become available used so you could try it for cheap.ġ0 inch dob. Weight is at the bottom of the scope, putting a pair of handles on it makes carrying itĮasy. I definitely prefered the image of just about everything compared to the 150 acro. It does mount well on medium duty mounts.Ĩ inch dob. I would think a f/15 f inch would be nice but now we are at the big heavy tube again.ġ20 ED f 7.5 used can be found for $1000 and mounts well perhap my The achro still has too much color for planets for my taste. I know you said this is a dso scope but sometimes the planets are just hanging thereĪn 150 ED would solve the CA problem but not the wallet problem.ġ20 f/8 acro. Is really needed, but that is a big bump in price and weight.Ĭhromatic abberation: ruined the colors of pretty doubles, smeared planetary detail. On a sky-view pro mount (the cheapest big mount) the scope was at the limit.įocusing was difficult and a breeze would make the scope shimmy. Your dovetail clamp while carrying the scope? I don't. The weight (all on the top) makes carrying that 65+ lbs very difficult. Too big to tree dodge, once its setup, it's staying put. Tube 20 lbs, counter weights 20 lbs mout head tripod 25 lbs. Long tube meant the eyepiece position varied a lot from horizon to zenith.īig and heavy. Not too long to cool down and no collimation. Very nice star images at low to mid power In response to your questions abot big refractor, dobs etc.
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