There is some excellent advice and guidelines for modifying the canon EOS400-1100 DSLR cameras
for digital photography. Services are offered for performing such camera modifications.
How effective are unmodified versions of these cameras for deep sky imaging?
My understanding is that the filter provided with the Canon EOS-1100D, for example
filters a significant proportion of the Halpha line.
Are there any images that exist to provide a comparison of cameras with/without this modification?