Since you asked, here's my test from this evening. The shadows are bamboo in the "foreground".
This was a test shot this evening through a 60D, using a ND3.8 Baader film filter built on the weekend. T adaptor to shoot through a 25mm eyepiece in my cheap and nasty $100 3" Dob.
Looking good for the eclipse tomorrow, have also got Canon utility prepped on the laptop to drive said camera tomorrow - the live view feature looks VERY promising, should be able to get great focus if I can keep my scope from wobbling while I fiddle with the focuser!