Thanks guys - good thought. On showing a side by side comparison - I'd suggest a target with alot of faint detail or High Dynamic range. So several suitable targets leap to mind - M16, M20 or M42 (Eagle, Triffid or Orion nebulae). A shots between 6 - 12 minutes on each camera would be ideal (so long as light pollution doesn't ruin things) - I'd love to see the difference of 12 vs 14 bit RAW (both before and after image processing). To me the extra stops could be very useful to an astro-photographer dealing with many interesting things that are very faint.
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