|Record your photos as either JPEG or RAW image data — or both simultaneously! Canon’s RAW image data delivers superlative image quality thanks to 14-bit color and lossless compression. It is ideal for obtaining the finest possible reproduction of your photos and for modifying images during post-production operations.
||The sRAW image type gives you the same freedom in post-production but generates files about half the size of RAW. For reducing file sizes while maintaining outstanding image quality, the EOS-1Ds Mark III offers a choice of four JPEG settings (L, M1, M2 and S) at any one of ten compression ratios.