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!
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COP USA L036S M12 Type 3.6mm Replacement Lens W/ F2.0
Maybe you scratched your current lens, or when you replaced it with the 8mm, you lost it? This is a standard 3.6mm f2.0 board lens.
The COP USA L036S is a great 3.6mm miniature lens for use with board cameras or any other security camera that uses M12 style cctv lenses.