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Old 12-11-2009, 08:39 AM
Chris Southby (Chris)
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Chris Southby is offline
 
Join Date: Mar 2009
Location: Canberra, Australia
Posts: 61
Tips on Polar alingment without a reticle eyepiece

Hi all
I am trying to get the best astro-photos with a very limited budget.

1.) I am trying to polar align my EQ5 Goto and I dont have a reticle eyepiece. I have got it fairly close buy placing the a star on the edge of the field of view at about 160x and watch where it moves and adust accordingly. Then using my 350D on 1 min exposures and looking for the length of the star trails and doing finer adjustments. I can sometimes get round almost round stars at 1 minute exposure times but no longer than that.
Does any one have any more tips on getting alignment perfect?

2.) To give me a somthing to aim for, what would be the maximium exposure time I could expect on an Eq5 without guiding for round stars with perfect polar alignment?
One further question

3.) Where can I get adapters to fit a 2 inch filter to the front of a 52mm and/or 58mm camera lens for widefield photography.

I'm hooked on this hobby and want to get the best images with what I have or can make up myself.

Cheers

Chris

3.)
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