Brinno BCS 18-55 18-55mm f/1.2 Lens for Brinno TLC200 PRO HDR Time Lapse Video Camera Designed for use with the Brinno TLC200 PRO HDR Time Lapse Video Camera CS mount Focal length: 18-55 mm Aperture: f/1.2-1.95 Dimensions: 43 x 55 mm