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Hi Sam. that makes perfect sense to me.
I use my EQ6 at 0.9 arcsec and its OK under typical good seeing here of 2.5 arcsec. Usually looking at 0.4-0.7 arcsecRMS, which adds to the star size, but is amenable to deconvolution.
However, it is no good in wind and the other night I got some seeing that was well below 2 arcsec - the mount wobbles in RA were then quite noticeable, but that was a once a year event.
I reckon that you should give it a try at 0.9arcsec - the EQ6 is better than often reported, or at least later model ones seem to be. Haven't tried tuning it up, apart from the normal careful adjustment of backlash and bearing preload.
Found with my earlier HEQ5 that a pier helped a lot with tracking precision - haven't been able to do that with the EQ6 yet. If you want to do some mods and don't have a pier, maybe try that first.
Last edited by Shiraz; 21-06-2014 at 09:26 AM.
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