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Hi Anth, the Baader corrector does clean up the corner stars quite well, the coma at f4.8 is not bad but noticeable. I've found some before and after pics for comparison. The before pics were done last year with no guiding, just tracking but the same ota.
The corrector is very fussy with focus and collimation, but at least the f4.8 is not as hard as the f4's to collimate. I did toss up whether to get the Skywatcher corrector as the f5 version had good revues. There did seem to be some colour aberrations on the corner stars, but these have got less visible with fine tuning the collimation and corrector spacing. The corrector is set up for Dslr use as is but I noticed tighter stars with the supplied thin spacer ring removed. The coma corrector is only a recent acquisition so I am still fine tuning it. I haven't used any filters yet but I am contemplating astro modding my spare 1100d after seeing Kevins shots with his modded DSLR.
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