Unlocking video features in the Canon5D Mk 2 with Magic Lantern.

If you’re like me and have used the Canon 5D mk 2 for video, you will have noticed a few things. The first thing is the outstanding quality of the video. You are able to shoot at full-frame 1080p. (1920 x 1080 – non interlaced). This is the holy grail of HD video. The fact that you can use the DSLR lenses ads a film-like quality to your video. With the nice shallow depth of field you are now able to capture something that resembles a cinema camera, or at least a high-end video camera worth $100,000 or so.

You will also have noticed some drawbacks. The audio sucks really bad because of Canon’s AGC Auto Gain Control in the audio. The footage is H.264 so it does show some minor artifacting and the lack of decent focusing controls. I have found a great workarouns by using the free Magic Lantern firmware hack. Let’s examine how it works and a plain english installation walk through.

Magic Lantern doesn’t replace the firmware on your camera. You install it onto a CF card and then run it when you need to shoot video. Bottom line, it doesn’t overwrite your cameras firmware. When you restart the camera, it goes back to normal.

Why the bad audio? AGC sets the volume of the input based on the sound the microphone hears. It samples the audio level and automatically adjusts for it. This results in a very noisy signal with distortion. When you first start, you will hear the sound go really loud and distort, then settle in. This can be avoided by doing an audio count-in for each recording. Using  ML you can avoid this by setting manual levels.

In a nutshell Magic Lantern:

1. It disables AGC and provides manual gain controls for your microphone.
2. I shows an audio level meter so you can see how loud your input it
3. It provides headphone monitoring
4. Adds zebra stripes so you can visually see clipping
5. Adds the ability to use rack focus. You set the beginning and end focus point and let it ramp the focus, allowing a smooth focusing effect. It can also shoot a series of photos in varying focus points. You can then put them together using Photoshop CS4′s Exposure blend.
6. Lets you set multiple exposures that I plan on using for bracketing with HDR, it allows up to 9 different exposures vs the 3 in Canons AEB.

Best audio: I got the juicedlink CX211 for $189. This is a pre-amp that connects to the tripod and to the camera through the tripod mount. It’s light weight and uses a 9vt battery. By turning down the gain on the 5D with magic lantern and using jucedlink to boost the sound, you get a very clean signal. Audio problem solved!

Installing Magic Lantern

First up you need to know that this is installed at your own risk. It could damage your camera and there is no warranty. In it’s current release 0.1.6 it doesn’t support Canon 1.2.4 firmware. YOu need to upgrade from 1.10. I have to tell you, I had a heck of a time finding  1.10 on the web but, I eventually found it. If this link gets broken, you will have to google it.

First update the canon firmware if you need to. (This also has some nice fixes for the exposure during video recording).

1. Format a CF card,
2. copy the firmware to the root of the card
3. put it into the camera.
4. turn on camera
5. hit menu
6. move across to the 3rd yellow wrench and navigate to Firmware Ver. (If it’s already at 1.1.0 you don’t need to do anything. If it’s a higher number you need to figure out how to downgrade, or wait for the upcoming ML update.)
7. Press the Set button. Click ok and whatever you do, don’t turn off your camera or touch any buttons while it’s upgrading or you could toast your camera.

Now you have the firmware all up to date, what about Magic Lantern?

1. Download it here
2. Unzip it on your desktop
3. format a CF card
4. copy the magiclantern.fir and cropmarks.bmp to the root of your CF card.
5. Follow the above steps for the firmware update.
6. You can now use ML for this session. You will need to enable it each time you turn on your camera and want to work with video. I marked a CF card with the letters ML, so I know which one to grab.

You will need to enable Magic Lantern each time you turn on your camera and want to work with video. I marked a CF card with the letters ML, so I know which one to grab.

You need to be in Live View mode for ML to work

The buttom right under the menu button will become the Magic Lantern menu button (1). The menu is in yellow and is navigated with the the same buttom you use for normal menu navigation (2). Enable choices with button (3).

For more info and explainations on using Magic Lantern

Happy Mark free shooting!

Colin

Be Sociable, Share!

•