The CLS1431D has been Discontinued.
Costar lenses are made of high index optical glass elements which produce a rich and razor sharp image. Specifically designed to use with high-resolution cameras, these lenses are available in DC Auto-Iris configurations. Auto iris lenses are used primarily externally where there are variations in the lighting levels.
1/3″, 1.4-3.1 mm, DC Auto-Iris, Direct Drive, CS Mount