Author Topic: What is the largest Dob you've looked through or owned? How did the view Compare  (Read 29 times)


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So , now that we've covered what one thinks the smallest big dob is, what's the largest one you've owned or had the chance to look through?
How did views compare to scopes in the 12-16" range?
How does performance compare between a dark site vs in light pollution? (And between large & small under those conditions?)

How did Galaxies,Globular clusters and nebulae views differ in those situations?
For instance, globs can take more light pollution than nebulae,etc.

For me , Looking through my friend's 25" F5 Obsession was quite the treat at a dark site in the Adirondacks. Globulars definitely resolved more stars, and Galaxies more spiral structure than my 12" and 14" or the AAR 16". Averted vision was less necessary than on my 12" on the brighter DSO's for sure, but still helped.
However when we looked at Comet Jacques, the difference was less pronounced compared to my 12"...
Ive looked through Rob Teeter's 20" sub 4 ( bino view), globs were very big and bright.

M42 through s 20" Obsession at the Sterling mine was very impressive, but not much different than through the 12"....

Your thoughts?