The Pentax C30405KP is a quality 4.8mm lens for use with 2/3" CCTV cameras in various security and industrial imaging applications. The iris on this lens can be manually adjusted to ensure properly exposed images according to available light levels.
Ring Lock Mechanism
Both the iris and focus rings can be tightened with thumb screws to prevent them from shifting once they've been set.
In the Box
Pentax C30405KP 2/3" C Mount 4.8mm f/1.8 Manual Iris Lens