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Old 29-05-2014, 06:03 PM
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alistairsam
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Join Date: Nov 2009
Location: Box Hill North, Vic
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I've been reading about seeing and limitations of AO and can see your point Ray about the guide star being away from the target and high and low frequency components and how AO could make the stars bigger in some cases.
But wouldn't this be less pronounced at F4 as its a wider FOV?

That video of bad seeing with the moon, must've been at a long FL.
my FL is 1m and I haven't noticed anything as turbulent as that, so it may work out well at F4. remains to be seen.

I had a look at Multistar guiding with Jim's plugin for Maxim, but I don't think it works with AO.

My Baader LRGB filters aren't exactly parfocal, it'll be interesting to see how much the refractive element of the AO offsets focus for each filter.

I should get focusmax working, so with autofocus between filters, the longitudinal CA you mention shouldn't be an issue.

you've mentioned SA was less than 1/4 wave. will the quality of the coma corrector exacerbate this at all?
I remember reading that the MPCC had worse SA than the RCC1.

So if SA with the RCC1 is negligible, only component left is the refractive element of the AO. interesting...!!

will post results once I get my Lodestar X2 and RCC1.
Hope to try both high and low frequency guiding should the Lodestar X2 live up to the claim of increased sensitivity.
I don't have a rotator, so will just have to live with adjusting frequency based on guide stars.

Cheers
Alistair
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