USB MS Lifecam HD 3000 Exposure Issues

[techhelpbb]

I finally had a chance to put the PS3 Eye and a Microsoft LifeCam HD-3000 on my ODroid XU4:

PS3 Eye:

v4l2-ctl -l

User Controls

                     brightness (int)    : min=0 max=255 step=1 default=0 value=0 flags=slider
                       contrast (int)    : min=0 max=255 step=1 default=32 value=32 flags=slider
                     saturation (int)    : min=0 max=255 step=1 default=64 value=64 flags=slider
                            hue (int)    : min=-90 max=90 step=1 default=0 value=0 flags=slider
        white_balance_automatic (bool)   : default=1 value=1
                       exposure (int)    : min=0 max=255 step=1 default=120 value=120 flags=inactive, volatile
                 gain_automatic (bool)   : default=1 value=1 flags=update
                           gain (int)    : min=0 max=63 step=1 default=20 value=20 flags=inactive, volatile
                horizontal_flip (bool)   : default=0 value=0
                  vertical_flip (bool)   : default=0 value=0
           power_line_frequency (menu)   : min=0 max=1 default=0 value=0
                      sharpness (int)    : min=0 max=63 step=1 default=0 value=0 flags=slider

Camera Controls

                  auto_exposure (menu)   : min=0 max=1 default=0 value=0 flags=update
                     brightness (int)    : min=0 max=255 step=1 default=0 value=0 flags=slider
                       contrast (int)    : min=0 max=255 step=1 default=32 value=32 flags=slider
                     saturation (int)    : min=0 max=255 step=1 default=64 value=64 flags=slider
                            hue (int)    : min=-90 max=90 step=1 default=0 value=0 flags=slider
        white_balance_automatic (bool)   : default=1 value=1
                       exposure (int)    : min=0 max=255 step=1 default=120 value=120 flags=inactive, volatile
                 gain_automatic (bool)   : default=1 value=1 flags=update
                           gain (int)    : min=0 max=63 step=1 default=20 value=20 flags=inactive, volatile
                horizontal_flip (bool)   : default=0 value=0
                  vertical_flip (bool)   : default=0 value=0
           power_line_frequency (menu)   : min=0 max=1 default=0 value=0
                      sharpness (int)    : min=0 max=63 step=1 default=0 value=0 flags=slider

Microsoft LifeCam HD-3000:

v4l2-ctl -l
                     brightness (int)    : min=30 max=255 step=1 default=133 value=133
                       contrast (int)    : min=0 max=10 step=1 default=5 value=2
                     saturation (int)    : min=0 max=200 step=1 default=83 value=83
 white_balance_temperature_auto (bool)   : default=1 value=1
           power_line_frequency (menu)   : min=0 max=2 default=2 value=2
      white_balance_temperature (int)    : min=2800 max=10000 step=1 default=4500 value=2800 flags=inactive
                      sharpness (int)    : min=0 max=50 step=1 default=25 value=0
         backlight_compensation (int)    : min=0 max=10 step=1 default=0 value=0
                  exposure_auto (menu)   : min=0 max=3 default=1 value=3
              exposure_absolute (int)    : min=5 max=20000 step=1 default=156 value=156 flags=inactive
                   pan_absolute (int)    : min=-201600 max=201600 step=3600 default=0 value=201600
                  tilt_absolute (int)    : min=-201600 max=201600 step=3600 default=0 value=0
                  zoom_absolute (int)    : min=0 max=10 step=1 default=0 value=0
                     brightness (int)    : min=30 max=255 step=1 default=133 value=133
                       contrast (int)    : min=0 max=10 step=1 default=5 value=2
                     saturation (int)    : min=0 max=200 step=1 default=83 value=83
 white_balance_temperature_auto (bool)   : default=1 value=1
           power_line_frequency (menu)   : min=0 max=2 default=2 value=2
      white_balance_temperature (int)    : min=2800 max=10000 step=1 default=4500 value=2800 flags=inactive
                      sharpness (int)    : min=0 max=50 step=1 default=25 value=0
         backlight_compensation (int)    : min=0 max=10 step=1 default=0 value=0

I have also confirmed Greg's link above with a caution:
Those values only work at normal room lighting.
If you light the room up abnormally bright - you still see some exposure control- but the camera frame rate is impacted.
Basically it's like the shutter speed on a hand held film or digital camera.
So guess what: if you put sunglasses in front of the camera lens it lowers the light level and the frame rate increases.
I played around a bit, but to be honest, I can't get to the settings from that interface to alter the camera behavior and I can in Windows.