I scrap electronics and today I did a tabletop style projection TV which instead of having three projector lenses (red blue and green) it had one lens which they all came through, there was only one light and no oil filled lenses. Anyway the one lens is what this is and it is of pretty good quality!
It has almost no fisheye effect even when up close however it is extremely wide and very clear but only at a certain distance from your eye, any closer it blurs out quickly and I think there is an inner and outer lens:
Possibly I can remove the inner lens and that will remove the blurring when being close to your eye, if not I can attach it to a rig of some sort:
Something like this but it might be too close on my SD9:
No threads though :(