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On Mon, Sep 23, 2024 at 09:15 PM, nathantwong wrote:

Good choice. One thing, if you're using an ASIAIR then bypass the iPolar. It won't be needed. I have one and when I was strictly visual I used it all the time, but the moment I purchased an ASIAIR and used the mount for astrophotography I found that the polar alignment was different with the iPolar and with the ASIAIR and so the iPolar was never used. Just my recommendation.

Hi Nathan,

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I had been using a Polemaster since they first came out several years ago.? Over the years I bought other PA tools and cameras but the Polemaster always seemed to give me very good reliable repeatable results. I found that all of the different PA tools, cameras, extensions and apps give slightly different polar alignments when you compare them to each other. The real test is comparing them against a DEC drift alignment and see how far off they are.?

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Interestingly when I started using the ASIAIR and shortly after the ASIAIR All-Sky PA was added the ASIAIR gave me very good results. After testing and examining the images the All-Sky images were good enough to rely on for imaging. The All-Sky PA which never points at Polaris and has been working very well for me for a couple years now with the Losmand Gemini 2 powered mounts.

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I have seen several videos trying to demonstrate which of these is better but none of them are very good and all simply compared one against the other. I don't think this kind of testing proves much of anything other than they all provide slightly different results some better some worse.?

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But for me having round stars for 5-6 minute subs is good enough.?

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