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Old 11-09-2008, 07:23 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,786
Quote:
Originally Posted by Dennis View Post
>snip
You can just make out the diffraction pattern from Jupiter’s washed out discs (all 3 of them due to the mask!)
Cheers
Dennis
Quote:
Originally Posted by wunder View Post
Hi all- I had to jump in on this one. I'm Jerry's business partner, John Wunderlin.
You can't use Jupiter very well to focus- I saw the same thing in my testing- it has to be a pinpoint of light,
>snip
Hi John

Welcome to Ice In Space – it’s nice to have the business owners providing their insight into this device.

The comment about the diffraction pattern seen from Jupiter’s washed out disc was posted as an observation rather than a recommendation for focusing, as I suspect most amateur astronomers are aware of the requirement for a point source of light, although the Galilean moons (extended discs) do serve as very useful indicators to confirm focus.

Cheers

Dennis
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