2.5mm CCD Camera Lens
by RMRC

This is a 12mm threaded 2.5mm lens that will fit the RMRC-420, 420xv, 480, 520, 540, LL600, 600XV, 740XV, and most other common CCD cameras.

NOTE: CCD lenses do not have an IR filter.  If you are using a CMOS camera, you should purchase a lens that includes and IR cut filter or your video colors will not be correct in daylight!