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Notes Regarding Specific Cameras
Canon 5D Mark II
Firmware Release 2.0.4 and Later
With firmware release 2.0.4, Canon has provided manual control for audio!!! It
also provides for a meter. But, the meter is only visible during setup (not during
recording).
This is a welcome addition. We hope to see firmware updates from all DSLR
manufacturers, for all cameras to add audio features.
For lowest noise performance while recording fine audio detail, you will want to
manually throttle back the camera gain, and replace that noisy gain with clean
gain from the juicedLink low-noise preamplifier. Follow the directions from Canon
for how to navigate the firmware menus.
The lowest noise performance will be achieved with the lowest gain setting on the
5D (1 click above the lowest (off) setting). This may be just a little outside the
factory calibration for the DT454 METER HI setting. You can run the DT454
meter a little hot. Or, you can try and get the DT454 calibration a little bit closer to
the 5D 1-click setting:
NOTE: We have posted a video on our website which may be helpful to illustrate
steps in general. However, please refer to this user Manual for the exact details.
1. CALIBRATE THE DT454 METER:
a. Set the 5D gain on the 1-click (above off) setting
b. Set the AGC Disable switch to the OFF position.
c. Set PAN TO L / NORM switch to the NORM position (Since AGC
Disable is not used)
d. Set the METER switch to the HI position
e. Connect a mic to your DT454, and adjust the GAIN and TRIM (volume
potentiometer) settings so that when you speak into your microphone,
the meter on the 5D peaks splash up to the -12dB full scale point.
f. Just above the “HI” lettering on the bottom of the DT454, locate small
hole in the aluminum enclosure. Behind this hole is a potentiometer
that calibrates the meter sensitivity for the HI setting.
g. Using a small screwdriver (1/16”) adjust the HI METER potentiometer
so the 3
rd
LED is illuminated as the 5D meter splashes up to the -12dB
full scale point while you speak into your microphone. The meter has