Lensbaby 2.0 improves upon The Original Lensbaby in key areas: Brighter: Lensbaby 2.0 now features an f2.0 aperture setting in addition to The Original Lensbaby's f2.8, f4.0, f5.6 and f8.0 Sharper: Lensbaby 2.0 uses a coated, high refractive index, low dispersion optical glass doublet that creates a sweeter sweet spot of focus. The Original Lensbaby features a single uncoated optical glass element.Faster: With Lensbaby 2.0 shielded magnets levitate your aperture disks just above the optic. Changing apertures is quicker than with The Original Lensbaby, which holds its aperture disks in place with a rubber gasket.