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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.

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 nameT10Z0513CS

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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