The latest version of the C90 has the same optics as the SkyWatcher 90 Mak but in a nicer tube. The eyepiece that comes with it is actually a nice eyepiece, much better quality than the eyepieces that come with SkyWatcher scopes. The finder is poor but at least the scope has the standard Synta type dovetail shoe and it does come with a backpack. I'd replace the diagonal with a proper 90 degree star diagonal though.
I used one, and it was a very nice little scope, but I replaced it with a bigger Mak.
John
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