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Old 11-11-2007, 04:11 PM
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Lee
Colour is over-rated

Lee is offline
 
Join Date: Sep 2005
Location: Newcastle, Australia
Posts: 2,414
Collimating a refractor??

I'm after a bit of advice...... since changing the focuser of my ED80, I have noticed what looks like coma at the edge of the field - comet shaped stars.... I'm pretty sure it wasn't like that before. The focuser looks straight/square.... I have no idea how I would go about adjusting anything anyway!
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