How to disable AGC (Automatic Gain Control) on Canon DSLR cameras (550D/T2i,7D) with Rode videomic

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Uploaded by on Jul 23, 2010

It's a fast little tutorial I made, to help people who are struggling around with this problem. Any questions, then comment.
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EDIT: Magic Lantern fw for 550D is out now.
http://magiclantern.wikia.com/wiki/550D
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You can get 19KHz tone from learningdslrvideo - http://www.learningdslrvideo.com/podcasts/19kHzSineWave1hr.mp3
Dave Dugdale AGC tutorial Part 1&2 - http://www.learningdslrvideo.com/t2i-7d-disable-agc-rode-videomic/
Dan McComb AGC disabling tutorial - http://www.danmccomb.com/posts/520/how-to-really-disable-agc-on-canon-t2i/
MikeB AGC tutorial - http://www.youtube.com/watch?v=91xw_NX0Qm8
Magic Lanterns webpage - http://magiclantern.wikia.com/wiki/Magic_Lantern_Firmware_Wiki
and also check out http://www.learningdslrvideo.com/ to get more information about DSLR video.

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Uploader Comments (thaarv)

  • Can you do this in Audacity, if you don't have Final Cut?

  • @JonandSamTV I don't know, I haven't tried, but you can try it;).

  • Can you do this on iMovie 11'? Thank you ahead of time! Please answer B)

  • @JonandSamTV Since I'm not a iMovie user, I can't answer your question. But you can try it out, you just need to edit the audio tracks.

  • can this "firmare" destroy or ruin the software on the 550d? can you just run 1.0.9 firmware on your 550d to default it again ?

  • @Scortech There's minimal risk. I really recommend you to follow instructions on magic lantern homepage.

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All Comments (71)

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  • My t3i have firmware and that stuff

  • HAS ANYONE TRIED THIS ON A 7D????

  • Wow, this looks like the best hack yet! I am pretty green at this stuff, but really confident I can follow these instructions. Will post my results. Thanks Thaarv!

  • Can you do this in Sony Vegas Pro 10?

  • what about the t3i? would this work on the t3i?

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