George,

No, not necesary with the 350D.

Robert

On Fri, 27 Apr 2007 01:07:43 GMT, "George Normandin"
wrote:


"Robert Price" wrote
...
Not less noise. Both at 400ASA. The Owl was cropped while the M8 was
full frame. The M8 1/4 reduction in image size reduces the appearance
of noise by averaging 16 pixels. No such reduction with the Owl
because ot its small size.


Robert,

Are you using dark frames? It would seem that going with say 2 minute
sub-exposures would be best. You can grab about 5 or so darks and average
them to reduce noise even further.

George Normandin