I didnot cover a guide scope or illuminated reticle, electric focuser etc but I thought what you can do is use the 150ar as your guide scope piggy backing the 350d canon.. even with standard lens you will be happy with the results from even your mount.. I have done some wide fields with exposures up to 45 minutes with 300d unguided with my old mount (the one that came with the 150ar) very satisfying if you have not tried that.
alex
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