The DX series cameras were the first EasyShare models released, beginning with the DX3215. It was originally a very basic point and shoot camera series, compatible with the original EasyShare Camera Dock. The CX series eventually replaced the lower-end DX models, and the newer DX-Series models had more advanced features and higher megapixel resolutions and zoom. The DX series is now discontinued. The higher-end of the DX-Series (higher zoom, megapixel) eventually became the Z-Series. Select DX models were the last Kodak consumer digital cameras to use CompactFlash external memory cards.