This Lensbaby Plastic Optic is part of the Lensbaby Optic Swap System. Lensbabies has developed a line of different "optics" that can be interchanged with the Muse, Composer, and Control Freak lenses. This provides artists with an almost unlimited variety of looks and styles to capture their unique visions.
The Plastic Optic provides the softest, dreamiest look in the line-up of optics. It results in photos that have a very ethereal look, with abundant chromatic aberration.