SnapperTalk

Photographer Doug Plummer’s blog posts a news release from XLR audio adapter company BeachTek announcing their new model specifically designed for the Canon 5D Mark II. Back in January of this year photographer Edmond Terakopian posted a preview of the device.

This isn’t just a simple XLR adapter like the rest of the company’s product line, but includes one special feature to overcome a specific problem that photographers and videographers using the camera have been complaining about since the camera was launched – namely that it applies audio Auto-Gain Control (AGC) all the time, with no way for the user to switch it off and exercise manual audio gain control.

The new device is said to get around the problem by “sending a high frequency inaudible tone to the left channel of the camera” – in effect tricking the AGC circuit into thinking volume is at a high, fixed level all the time and so applying a fixed level of gain, which in turn allows the user to control overrall gain via a dial on the device (if my reading of the technology is correct). The device also allows the photographer to monitor the audio in real-time with headphones, another feature missing from the camera itself.

According to the press release posted the device will be shipping at the end of May for $379. Of course it would all be a lot simpler if Canon just allowed the user to switch AGC off completely, which presumably could be done via a firmware update… although there’s no clear sign of that coming.

For lots of discussion on the subject of the camera’s audio and other features as regards shooting video, take a look at these sites:

Cinema5D forum
DV Info’s 5DmkII forum
Planet5D wiki, blog & forums

[via Doug Plummer's Dispatches, via The Click]