a bit Off-topic:
Well, I see how having a widescreen would not help in the framing of your shots,
But I’d just like to point out that in Widescreen PAL, you have more definition than NTSC, and more definitiona than 4:3 if you have the right camera and TV.
My Canon XL2 shows me less ‘image-space’ when I switch to 4:3, but sadly with most cameras it’s indeed the opposite: the top and bottom of a 4:3 CCD get cached instead of the sides of a 16:9.
Hope I’m not ranting.
BTW: do some test-shots or photos with your helmet by reflecting some lines or gridpatterns on them, so you see how they’re distorted in the reflection.
If you’re just going to make an image of a “landscape on fire”, then cachee it into the little visor-window with a mask, it will look pretty unrealistic without distortion.
I think that’s going to be the main challenge in selling the reflection.