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Old 02-08-2010, 06:51 PM
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Colin_Fraser
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Join Date: Jul 2010
Location: Porepunkah, Australia
Posts: 329
Reflector Specs.

Hello all,
I have been doing more research for my first scope.
I have just been informed it may very well be Christmas before the Skywatcher 14" comes to Australia. So I am now looking to get something smaller.
These are the specs between the 12" and 14"

Focal length 1500, 1700
F/Ratio 5, 4.7
Secondary Mirror both 70mm
Highest Practical Power both 610x
Resolving Power both 0.38
Faintest Stellar Magnitude 14.9 and 21 (whopping 6.1 increase)

I think there may be a mistake with the claim of 21 for the 14" because there is only a difference of 1.3 between a 6" dob and a 12" dob.
Seems like the specs are so close it would hardly make a difference to a beginner like me.
Anyone have any thoughts on this? Is the difference really that critical?

Thanks in advance.
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