Well, one night recently the light-bulb lit up suddenly and brightly
over my head (it does make one wonder, sometimes, why it
takes so long to happen, though...;-). I have a Sony DCR-TRV9,
which has a night (infrared) mode. Switched on, the camcorder
is quite sensitive to IR (though the image is a near-monochrome
grey-green). Switch on the weak IR light source on the camera,
and you can "shoot in the dark" (you need to be looking straight
at the IR light source to see it...). It suddenly occured to me that
in IR mode with a red filter on the front, in B&W mode, the TRV9
would shoot daylight B&W IR video! It works! (I add a polarizer to
slightly heighten the effect, and to act as a moderate ND filter
to avoid overexposure.) Black skies, white clouds, white folliage,
dark water, light people - hey, neato! (I do run all my TRV9 footage
through a video EQ to boost the contrast, though - it seems
rather weak normally, alas, in all modes...)