If I insert one of the other three cards, it will usually give Err 80 on the LCD, or nothing will happen.

I've tried installing/uninstalling ML from the one working 8GB card and everything works as expected. Needless to say they removed the card too fast and the camera now has issues, specifically of the four CF cards I use with it, only one now works.

On this camera, removing the card too fast might cause permanent damage.After opening the card door, always wait for LED confirmation (or for 5 seconds) before removing the card, even if your camera is turned off!!!.Unfortunately, I handed the camera to someone without remembering to mention the following note from their website: Important notes ▪ -14 seems to be the best that can be sustained with the card with all other ML tasks running.I had my Canon 5D MkII set up and working with the Magic Lantern firmware (ML) for some time without issue. ▪ Auto-exposure changes seems to lead to immediate overflows: shoot manual exposure mode ▪ Locked-off shots seem less likely to trigger buffer overflows amount of motion? qscales less than -12 occasionally stopped recording. The 24p tests were done with the camera on a tripod writing to a Lexar 400x UDMA 16 GB card with all Magic Lantern tasks disabled (no zebras, cropmarks, etc). The default q-scale is -8 in VBR mode and has a nominal 42 Mbps with the 2.0.8 firmware. The parameter does not have any effect unless fixed bit rate encoding is selected via mvrFixQScale(int16_t *) (2.0.8 0xff9905d4 ). If the CF card is not able to keep up, the camera will display a buffer-level bar on the right side of the LCD and stop recording when it hits full. “The Canon function mvrSetDefQScale(int16_t *) (2.0.8 0xff990188 ) sets the quality parameter to the camera ‘s h.264 encoder. All of the info and specs are on his Wiki site. This is a beta version and should be used with caution. He has a new Magic Lantern Update that will increase the Bit Rate to 66 Mbps on the Canon 5D Mark II. keyboard_arrow_rightCameras of the Year.keyboard_arrow_rightGear Guides by Budget.keyboard_arrow_rightGear Guides by Type.

Magic lantern canon eos 5d mark ii