The Lensbaby Optic Box Set includes three optics options: Plastic, Pinhole / Zone plate, and Single Glass. Part of the Lensbaby Optic Swap System.

Plastic Optic - our softest optic overall and it creates very ethereal photos with abundant chromatic aberration.
Pinhole/Zone plate Optic - lets you shift easily back and forth from pinhole to zone plate mode with your digital SLR by simply sliding a toggle inside the optic. In pinhole or zone plate mode, this optic insert achieves soft focus and dreamy images that are equally sharp from edge to edge.
Single Glass Optic - is an update of the Original Lensbaby optic, ideal for fine art, portraiture, black and white images, and any shot requiring a subtle, soft, dreamy effect.

Specs

Pinhole / Zone plate

• 55 mm focal length
• Pinhole: f/177 / Zone plate f/19
• Pinhole: 55mm focal length / Zone plate 55mm focal length
• Shipped in clear plastic storage case
• 1.75" (4.44 cm) x 1.37" (3.5 cm)
• Compatible with the Composer, Muse, and Control Freak

Plastic

• 50 mm focal length
• Uncoated double convex plastic singlet
• Shipped in clear plastic storage case
• 1.75" (4.44 cm) x 1.37" (3.5 cm)
• Compatible with the Composer, Muse, and Control Freak

Single Glass

• 50 mm focal length
• Uncoated double convex optical glass singlet
• Shipped in clear plastic storage case
• 1.75" (4.44 cm) x 1.37" (3.5 cm)
• Compatible with the Composer, Muse, and Control Freak