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Silver metal CS-mount lens barrel with zoom and focus rings

Computar Ganz

Computar Ganz T10Z0513CS 1/3" 5-50mm f1.3 Varifocal Manual Iris CS Mount CCTV Camera Lens

SKU CH-HMN5-136DW

Varifocal CS-mount lens covers 5-50 mm at f1.3-16 for 1/3" sensors, with manual iris, zoom and focus plus .8 m minimum focus

  • Varifocal 5-50mm range covers wide to narrow views
  • Fast f/1.3 aperture gathers light for low-light scenes
  • Manual iris adjusts exposure from f/1.3 to 16C
  • 8 m minimum focus captures close detail
  • CS-mount metal barrel with locking screws ensures secure fit

Computar Ganz T10Z0513CS Varifocal Lens

The Computar Ganz T10Z0513CS is a varifocal CCTV lens built for CS-mount cameras using 1/3" format sensors. It provides a focal length range of 5-50mm with a manual iris adjustable from f/1.3 to 16C. This design allows installers to adjust the field of view on-site without moving the camera body. It suits surveillance setups needing flexible coverage from a single fixed mounting point.

Focal Length and Iris Constraints

The 5-50mm range lets you shift between wide and narrow angles, but the minimum focus distance is fixed at 0.8 m, limiting extreme close-up detail. Manual zoom and focus rings require physical access to the lens for every adjustment, which is impractical for remote or hard-to-reach installations. The manual iris cannot react to sudden lighting changes, so exposure must be set for the prevailing condition. Buyers needing motorised remote control or auto-iris response cannot use this lens.

Critical Compatibility Specification

This lens only fits cameras with a CS-mount thread and a 1/3" sensor format; it will not mount on C-mount bodies without an adapter and will vignette on larger sensors. The all-glass optics and metal barrel with locking setscrews secure the chosen focal length against vibration. If your camera uses a different mount type or sensor size, this is not the correct part.

Highlights

  • Varifocal 5-50mm range covers wide to narrow views
  • Fast f/1.3 aperture gathers light for low-light scenes
  • Manual iris adjusts exposure from f/1.3 to 16C
  • 8 m minimum focus captures close detail
  • CS-mount metal barrel with locking screws ensures secure fit

Specifications

BrandComputar Ganz
ModelT10Z0513CS

Questions about this item

Should I pick the 5 mm or the 50 mm end for my scene?

The lens zooms continuously from 5 mm to 50 mm, so you can dial in any focal length between those two extremes without swapping lenses.

What does the f/1.3 aperture deliver on a real 1/3″ sensor?

At f/1.3 the lens gathers the maximum light the optic allows, giving brighter low-light images on a 1/3″ format camera.

What does the CS mount limit in practice?

The CS mount fits only CS-mount camera bodies and locks with setscrews, so it cannot be used on C-mount or other mount types.

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