You can download and use the firmware for free. There is also an option to quickly switch between Magic Lantern and the original software. The software is installed on the memory card and can be easily removed.

You use it at your own risk, the developer is not taking any responsibility if something will happen to your camera. Magic Lantern was originally written for the Canon EOS 5D Mark II by Trammell Hudson in 2009 after he reverse engineered its firmware. It adds features for DSLR filmmaking and still photography, and is free and open-source. Magic Lantern is an unofficial hack that is not allowed to use by Canon. Magic Lantern is a firmware add-on for various Canon digital single-lens reflex (DSLR) cameras and the EOS M. RGB histogram with RAW support, the waveform for perfect green screen lighting, vectorscope for color tones and custom Kelvin white balance. Magic Lantern enables in Canon EOS motion detection, silent pictures mode, custom vignetting for lens correction, zebras for under/overexposed areas, focus peaking for quickly checking focus, Magic Zoom window to fine-tune focus, crop mark overlays for 16x9 bars or any custom shape, Spotmeter in live view, false color for precise exposure control. We got also full control over H264 bitrate and recording framerate, option to record HDR videos, voice tags for photos and video and 14-bit uncompressed RAW video to quick CF/SD cards. Magic Lantern add to your camera features like trap focus, follow focus, rack focus, custom AF patterns, automatic auto-focus micro adjustment (DotTune AFMA), bracketing for exposure, flash, or depth-of-field, in-camera intervalometer or custom bulb timer for extra-long exposures.

Magic lantern canon eos m download