RAW photos noisy after processing.

[col4bin]

Without having to post any examples and just taking my word here, what would cause my RAW conversions to have excessive noise? Could there be a problem with my 30D sensor or is this a normal effect from over processing?

[tim]

Question has been asked many, many times.

http://photography-on-the.net/forum/showthread.php?t=294218&highlight=raw+noisy
http://photography-on-the.net/forum/showthread.php?t=261628&highlight=raw+noisy