Open the Image Capture application and turn off the option to open iPhoto when a camera is connected from the Preferences menu, and if that doesn't work, change the settings in the CDs & DVDs pane of System Preferences.
Open the Image Capture application and turn off the option to open iPhoto when a camera is connected from the Preferences menu, and if that doesn't work, change the settings in the CDs & DVDs pane of System Preferences.
Launch Image Capture.app in your Applications folder, and under Camera in the General tab of Image Capture's Preferences, choose another application or 'No application' from the drop-down menu next to 'When camera is connected, open:'.