The 5–50mm Varifocal Lens is a high‑resolution manual optical system designed for demanding imaging tasks that require both flexibility and precision. Built on the industry‑standard CS‑mount platform, this 3.0MP lens pairs seamlessly with a wide range of compatible cameras, including many inspection and machine‑vision systems.

Key Features

• CS-Mount Compatibility
  The CS‑mount flange distance ensures wide compatibility with CS‑mount cameras, while also being easily adaptable to C‑mount systems using a simple adapter ring.
• 5–50mm Varifocal Zoom
  A smooth, hand‑adjustable zoom mechanism delivers a continuous field‑of‑view change – from a broad 51° horizontal angle at wide setting to a telephoto 6° at full zoom. This flexibility supports everything from an overview of a large PCB to extreme close‑up inspection of individual IC pins.
• Manual Iris Control
  The user‑adjustable iris allows the operator to fine‑tune the aperture opening between f/1.4 and fully closed. Closing the iris increases depth of field and reduces light throughput; opening it maximises light gathering and creates shallow depth‑of‑field effects. Manual control is often preferred in microscopy and metrology where automated iris changes would disrupt repeatable measurements.
• 3‑Megapixel Resolution
  The lens is optically specified to support sensors up to 3MP, delivering sharp, high‑contrast images that reveal fine surface details, solder‑joint quality, and component markings.
• Long Working Distance
  With a minimum focus distance of approximately 1 metre, the lens is optimised for bench‑top inspection, test fixtures, and automated optical inspection (AOI) systems where the camera is positioned well away from the subject.