Too bad I've just splashed out several grand on a new Atlux, a 40D and couple of zoom telephotos (including a 70-200mm F/2.8 L IS USM), an autoguider , another coma corrector to suit the OAG , so my bank account looks a bit sick now....
Otherwize , I'd snap that cracker of a lens up ....\
Why wouldn't an IS lens be suitable ? you simply turn off IS for astroimaging and the lens will be same as the non-IS model in that case .
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