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I thought it was a bit light and further research indicates that PE is up to 20 arc seconds.
I have since stumbled upon the Astrotrac - they claim, maximum PE, 5 arc seconds - supports 15kg (shipping is not additional). The blurb and images are impressive - adding it to my line up.
I looked at G11's and compatible types. They look good but they're not as portable as I would like. I sometimes travel for work and would like to take my imaging equipment along with me. I get to some dark locations from time-to-time but need to travel light.
Again it's back to what will fit my needs and provide the best opportunities for astrophotography with the time available.
On a positive note, I've been experimenting with f-stops on different lenses and find, as the photography sites advise), stopping down almost eliminates CA - f11 is quite slow though, on a f3.8 lens. Waiting for a clear night here in Geelong.
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