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crwdns2934241:0crwdne2934241:0 Tim D

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REF: http://gdlp01.c-wss.com/gds/0/0300004730/02/eosrt3-eos1100d-im2-c-en.pdf

Take a look at page 219, and check to see if you have "long exposure noise reduction" set to either 1 or 2.  If so, change the setting to 0 and see if that fixes the problem.

If this doesn't work, try resetting the camera to default settings (see Page 164).

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open