Quote:
Originally Posted by Hemi
Dear members,
I was thinking of buying a short tube refractor for him. A good all round scope for planetary and deep sky. One that we could take camping, and one that may potentially double up as a reasonable imaging OTA and or guide scope. He is a small 9, and I want him to be able to do everything himself in gems of weight etc.
Your advice would be great.
Cheers
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Can't really have both, planetary and DSO, they have different optical requirements. Guide and travelling will work but probably not imaging unless you buy an APO.
I'd suggest simplicity, a basic 80 F5 Achro refractor and AZ tripod, point and shoot set up. I'd almost suggest a good photo tripod with a control arm rather than an astro one with knob controls. He can just push it around. Add a red dot finder and a couple of maybe the GSO SV eyepieces, 15 or 20mm and he's away easily. Long term it makes a good guide scope and always a great grab & go option. No collimation required either, those things are built like the brick proverbial.
The 8"dob is good but not really for travelling unless you have plenty of spare space in the car, not always possible with a family. DSO's require widefeild mainly but planetary needs a longer focal length to see any detail. You will still see Saturns rings and Jupiters moons, great clusters and some nebulosity on brighter DSO's (M42 eg). Brilliant on the moon of course and I've spotted comets, satellites and meteors with mine. And a few planes ..
My 80F5 and a photo tripod with adapter has travelled in the boot 1000's of km around NZ and is now mainly my guide scope. But next big trip it's off the mount and travelling again. I reckon as a first scope they are brilliant and have many uses long term.