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Canon EOS Crop Sensor for HD
APS-C sensor cameras including the 80D, 70D, 7D Mk. II, 7D, EOS M and Rebel models for HD video recording.


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Old January 27th, 2011, 04:13 PM   #1
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magic lantern 550d and audio monitoring

will the latest firmware update allow audio monitoring through the a/v out jack? if so, can the volume be controlled?
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Old January 27th, 2011, 04:47 PM   #2
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I think it can be monitored already. It is line level (−10 dB) so you can't just put earphone on it. You'll need a small amplifier. Maybe there is a hack to make an amp from an old MP3 player....
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Old January 27th, 2011, 05:10 PM   #3
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I should have said monitoring through headphones. Apparently the magic lantern software has output level control. I would like to know if it works and if the level can be adjusted.
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Old January 27th, 2011, 05:11 PM   #4
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No. Not without an amplifier.
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Old January 27th, 2011, 05:48 PM   #5
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I thought I read you can. Why not install it and find out?

"I also was able to get headphone monitoring up."
http://www.dvinfo.net/forum/canon-eo...lantern-6.html
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Old January 27th, 2011, 05:59 PM   #6
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Output is currently through the USB port, so you'll need an adapter or headphones with the same kind of audio-to-USB interface that Canon chose uses. In early test versions, audio would come out so hot that it would clip headphones, so I don't think volume is a problem.

However, the way ML now handles audio monitoring may be completely different than the aforementioned test builds. As such, I have no idea how it works now, I just know it is possible to get a very loud signal out of the camera.
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