Thanks for the kind comments Ray.
Hi Paul, yes been changing my mind constantly but predominantly for the extra resolution. I think I have found a relatively cost effective way to go mono (the expense was the other factor). Either buy a qhy9 or atik 383l and use a 36mm slide draw for filters rather than a filter wheel. That means I can use my existing OAG , lodestar and even coma corrector too (mpcc) which would've needed to be changed to a RCCI or similar with more 'distance'.
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