Nice video Jim! The Contour camera is a really good camera. With that camera, you can get a lens accessory kit so you can add screw in filters on the lens. With the GoPro I've had to jury rig mine so I can add a filter to fix that weird looking prop from CMOS chips. Do a search for - 37 mm nd filter - and you'll find several places where you can purchase one.
To make the prop look normal using the Contour you'll probably need a neutral density filter that is ND 2.0 (6 f-stops) on sunny days. That's what I need for the GoPro to make the prop look pretty close to normal. If you get the ND.90 (3 f-stops) you could possibly screw on two of those to get the 6 f-stops. It'll take some experimenting to get the right combination, but, that's where the fun is and you'll have a nice looking prop spin.
If you need any assistance, I'll be more than glad to help, just give me a shout.
