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Old 17-11-2005, 08:16 PM
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davidpretorius
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davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
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Quote:
Originally Posted by rumples riot
Davo not all the big planet team use a 5x. Some of us use a 2.5x.
argh yes, i keep forgetting the sct's @ f10.

Norm a scope at f5 ie newtonians (dobs are an example) with a 5x barlow is similiar to a f10 with a 2.5x

Rumples has a f10 scope and basically if he used a 5x barlow, jupiter would be bigger than the imaging screen!
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