Lensbaby Fisheye Optic

Lensbaby Fisheye Optic - Turn your Lensbaby Composer into a fisheye lens with the Fisheye Optic, part of the Lensbaby Optic Swap System. The Fisheye Optic’s ultra-wide 12mm focal length captures an eye-popping fisheye view from infinity all the way down to one-half inch from the front of your lens.
The Fisheye Optic is designed for use with the Composer, but can also be used with the Muse and Control Freak with the purchase of a special adapter (optional).
Specifications:
• Focal Length: 12mm
• Six element multi-coated optical design
• f/4 optic with aperture disks that range from f/5.6 to f/22
• Focuses from .5" (1.3cm) from the front of the optic (allows for extremely close focus of zero inches from the front of the optic when used with the Control Freak) to infinity
• Removable disk aperture system
• To change aperture, unscrew top element of Fisheye Optic and remove with Aperture Tool. The aperture disk sits atop the bottom element
• Special adapter must be purchased for use with Muse and Control Freak