Quote:
Originally Posted by kabuki777
Thank you for the replies, yes we newbies do get abit enthusiastic and are expecting to see really noticeable changes with the larger apertures. I got lucky and someone locally was selling the 8 inch gso for $250.
I will keep at it, thanks. Just with all those juicy big scopes out there its really tempting.
John you mentioned I wont be seeing any difference between the 8 dob and the 6 frac, is it really that close? Lucky I havent gone bigger because I was expecting a world of difference. Thanks again.
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I think you may be under the misapprehension that somehow optical quality like that seen in high end refractors, somehow compensates for smaller aperture. A 6" refractor is still a 6" and loses out to an 8" on simple ability to gather light. At the high end they do produce exceptional images, but for seeing DSOs, aperture makes a lot of difference.
I have been on the aperture path going from 6 months with a loan 8" dob to a 12" for 4 years and a 20" since 2012.. comparing the 8 to the 12 the difference is marked. Have also looked through a few 10" scopes and is a noticeable but not earth shattering difference.
Malcolm