The second option of this feature allows you to change just the first three letters of the name, and the third letter will reflect the file size setting, such as IMGL0025.JPG for Large JPEG files or IMGL0025.CR2 for large RAW files. This adds the ability to change the naming convention of file name prefixes, so that instead of an image file being named IMG_xxxx, it can now be anything you wish such as DJK1xxxx or 7D12xxxx. Press the Q Button during image playback to quickly access several options including Protect Image, Rotate, Rate, Resize, Highlight Alert, AF Point Display, and Image Jump. Use the new Canon GP-E2 GPS unit to geo-tag your images. Resize (downsize) a JPEG image in-camera and save it as a separate image, for easy immediate output and use. Manually adjust the audio recording level while shooting video, as well as the volume during playback. MANUAL ADJUSTMENT FOR AUDIO RECORDING LEVELS

Set the maximum ISO that the camera will use while working in Auto ISO, between 400-6400 (inclusive). This feature speeds up the process of sorting and organizing images when you return to your computer and begin to work in Adobe Bridge, Apple Aperture, etc. Rate your images in-camera, from 1 to 5 stars. The file can then be saved as a JPEG for immediate output and use. Post-processing of RAW images in-camera, including adjusting or setting the white balance, Picture Style, High ISO Noise Reduction, Color Space (AdobeRGB/sRGB) and lens corrections (Peripheral Illumination Correction, Chromatic Aberration Correction, and distortion correction). Increasing the maximum burst when shooting RAW images from 15 fps to 26 RAW frames in a singlecontinuous burst. Unlike most firmware updates that correct a little bug and a typo in one of the foreign language menus, this update will add a considerable amount of features that were recently included in the Canon 5D Mark III. It has been reported that Canon will soon be releasing an important firmware update for the Canon EOS 7D.

Canon 7d firmware adjustment