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Computar Ganz TG3Z3510FCS-IR varifocal CS-mount CCTV lens, metal barrel, glass optics

Computar Ganz

Computar Ganz TG3Z3510FCS-IR 1/3" 3.5-10.5mm f1.0 Varifocal CS Mount Day/Night IR CCTV Camera Lens

SKU CH-40Q8-636V6

Varifocal CS-mount lens for 1/3" sensors covering 3.5-10.5mm with f1.0 aperture and IR-corrected optics for day/night CCTV cameras

  • IR-corrected optics prevent focus shift when cameras switch to night mode
  • f/1.0 maximum aperture gathers light for clear low-light surveillance
  • 5-10.5mm varifocal range adjusts field of view without moving the camera
  • CS-mount metal barrel with locking screws ensures secure, vibration-resistant installation
  • DC auto iris automatically controls exposure from bright daylight to darkness

CS-Mount Day/Night Lens for 1/3" Sensors

The Computar Ganz TG3Z3510FCS-IR is a varifocal CCTV lens built for CS-mount cameras using 1/3" format sensors. It provides a 3.5-10.5mm focal range with a fast f1.0 maximum aperture for low-light surveillance. IR correction eliminates focus shift when the camera switches to night mode under infrared illumination. The all-glass optics and metal barrel suit permanent security installations.

CS-Mount Installation with Manual Adjustment

The lens mounts directly to any CS-mount camera body and uses a DC auto iris connector for automatic exposure control. Manual zoom and focus rings feature locking set screws to secure the chosen field of view against vibration. Focus travels from 0.3 m to infinity, allowing close-up detail or wide coverage. Installers must verify the camera uses CS-mount rather than C-mount to avoid flange-distance errors.

Fixed 1/3" Format and Focal Range Limits

The optical design covers only 1/3" sensors; larger formats will vignette and smaller formats narrow the field of view. The 3.5-10.5mm range cannot be extended, so scenes requiring wider angles or longer reach need a different lens. Aperture stops down to 360C for bright conditions but the iris is DC-driven, requiring compatible camera circuitry. No motorised zoom or remote focus is provided.

How it compares

Measured against everything we stock in Analog Video Security Cameras, at today’s prices. Recalculated every night.

Price $97.99
Cheaper than about 58% of the 1,032 comparable items (median $119.99).

Specifications

Product
Brand nameComputar Ganz
Model nameTG3Z3510FCS-IR

Questions about this item

How can I verify the lens is focused correctly after installation?

Check that objects at 0.3 m and at infinity both appear sharp when you adjust the manual focus ring.

What comes in the box and what must I purchase separately?

The lens ships with locking set screws; you must supply a compatible CS-mount camera with a 1/3" sensor.

Which focal-length setting should I choose for my scene?

Use 3.5 mm for a wide view and 10.5 mm for a narrow view; the varifocal range lets you dial any setting between them.

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