Industrial Covert Unlimited is in its 20th year of operation. CU1.COM has been up since mid 1999. Great security & CCTV products and people who answer the phone!
Check this out!
Rainbow L35DC4P 1/3" 3.5mm DC Type Auto Iris CCTV Lens
The Rainbow L35DC4P is a great cs mount cctv lens with a 4 pin DC type auto iris. The L35DC4P also is a 1/3inch lens yet is compatible with 1/2" and 1/4" format security cameras. Furthermore the Rainbow L35DC4P has a 3.5mm fixed focal length.