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Old 11-01-2010, 03:08 AM
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bmitchell82 (Brendan)
Newtonian power! Love it!

bmitchell82 is offline
 
Join Date: Jul 2008
Location: Mandurah
Posts: 2,597
need some help from perth

hey all,

over the last few months i have been having some very dire problems with skywatchers budgo focuser design (same focuser for 3 different tube diameters).

Now before anybody tells me that my collimation is out. with the wide variety of tools i have used from 200 dollar plus hotec lasers, to astrosystems barlow lasers to cheshire eye pieces to star testing has been used to collminate.

I know the axis of the focuser is not matching that of the primarys axis.

I used multiwebs ideas from when i first posted about this issue, but this only slightly improved the situation but not enough for me to go thats good enough.

with the fast F# of 4.7 these things become far more noticable and affect things more and more. From reading a extremely good thread on cloudy nights

http://www.cloudynights.com/ubbthrea...Number/3532772

it has become apparent that i need some different tools to do the job

there for if there is somebody in the perth area who has a autocollimator and experienced and is willing to let me either meet you somewhere, come to your house or something to see if i can get this thing worked out i would be eternally greatful

brendan
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