I am experimenting with the silhouette technique. I have just recently gotten access to a studio at work where I can try different techniques. If you have time, I would love some feedback. I took two of a collegue of mine who is pregnant, where one is a silhouette (she has clothing on, although 500px classified it as nude content when I posted it on my page there).
I did have my old 20D converted to infrared (thankyou lifepixel!), and have been quite happy with it. I shoot mostly B&W infrared with that camera now and am quite happy with it. When I got my new 5D, I realized that the old 20D wouldn't have been worth much, so now it is getting a second life as a dedicated infrared unit.
Camera Model Canon EOS-1Ds Mark III
Tv( Shutter Speed ) 0.3
Av( Aperture Value ) 13.0
Metering Mode Evaluative Metering
ISO Speed 100
Lens EF70-200mm f/2.8L IS II USM
Focal Length 105
AF Mode Manual focusing
Image Size 9486x5405