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Old 30-06-2008, 07:40 PM
Babalyon 5
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Babalyon 5 is offline
 
Join Date: Mar 2008
Posts: 181
Ok, so which do I buy?

Howdy all, how goes it?
It has come to my attention that I have egg shaped stars turning up in my images all the time, to the point where it has started to become a problem for me as my experience and images get better.
To this end, I have tried a small experiment with equipment. I dont think that the mount and guiding are the whole answer, although I am still using my LXD55 mount, which I would love to replace with an EQ6 as soon as I can.
I dug out an old 102mm Celestron scope that has done a few stints as a guide scope and took a few images through it. Can you please have a good look at them and compare to
http://www.iceinspace.com.au/forum/a...se.php?a=44399
http://www.iceinspace.com.au/forum/a...se.php?a=44044
http://www.iceinspace.com.au/forum/a...se.php?a=41568
so I can get your best opinions as I dont want to have to buy another scope as well as a mount, and tell me if you still think its a mount problem or a scope problem, as the 102mm test images seem fairly good with round stars. I have an LX90 with a wedge, however this is my grab & go scope, so I didn't want to set it up and tie it down,and it does suffer from mirror shift when adjusting focus, so mirror flop in imaging will be a problem also I feel. If it is more scope than mount related, I was unsure as whether to get the Skywatcher Pro 100 ED or the Orion 100 ED(Hope thats right) that are advertised on Bintels web site. I would have about $1500 to spend. I dont wanna use the Celestron as it suffers very badly from large blue halos around the bright objects, which is Chromatic Abberation, I think. Is that right? Or is it as simple as buying a filter to counteract this? The scope will need to have a large compatibility with both my DSI Pro 2 and Canon 40D, which Im yet to use as I still cant get it to connect to my pc properly, so the release cable will get a work out!
Thanks heaps.
Attached Thumbnails
Click for full-size image (Lagoon L Test 102mm0002.JPG)
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Click for full-size image (Lagoon R Test 102mm0001.JPG)
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