Theory and practise of wideangle 'fisheye' lens attachment for camera and camcorder at minimum cost - it works because optical aberrations with simple lenses are minimised in wideangle applications. Building the unit is left to the user.
by The Body Shop
by HayLo Creative Designs
by Jeff's Little Engine Service
by Official Loomaniac
by Classic Beader
by The Corner of Craft
by AmadaTH Draw