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the vc 200 l has a flat field at normal f9 with no coma etc, the reducer however does introduce some abberations albeit slight. its no where near the celestron for planetary imaging. For some stange reason the genuine reducer has a different thread than the genuine photo adapter and ive had to use tape over the reducer to screw it in.( not impressed with that) but it does work, the vc tube also is fairly lightweight, as it has an open front dewing is less of a problem and cooldown times are quicker.
the 9.25 has almost legendary optics (to do with mirror ratio F/l stuff) which is not on other s/c s and also accesories are easier to get.
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