snippet: The T5Z8513CS-IR from GANZ is a Computar Varifocal IR (infrared) manual iris lens, they are designed for use with Day/Night cameras. They eliminate focus shift in night mode, especially in the presence of IR lighting. All lenses are CS-Mount, comprised of all glass optics, come with locking set screws and a durable metal barrel and mount, and are covered by a three year warranty.

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