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Cylindrical metal C-mount extender with black finish, 1.5x magnification

Computar Ganz

Computar Ganz EX1.5C 1.5x C-Mount Extender surveillance accessory

SKU CH-XXDV-YVWSK

A C-mount extender that multiplies focal length by 1.5x, made in Japan

  • Increases focal length 1.5x for tighter field of view
  • Mounts between C-mount lens and camera for secure fit
  • Japanese manufacture for reliable optical quality
  • Backed by three-year manufacturer warranty

Extender for C-mount lenses

The Computar Ganz EX1.5C fits between a C-mount lens and camera body to increase focal length by a factor of 1.5. It is designed for surveillance installers who need a narrower field of view without changing the lens. Made in Japan, the accessory comes with a three-year manufacturer warranty. It suits fixed-camera positions where optical reach matters more than zoom flexibility.

Passive optical component

The unit contains no active electronics so it draws no power and produces no heat or audible noise. Thermal performance is therefore not a consideration and no cooling provision is required. Installation simply adds the extender into the existing optical path without altering the camera’s electrical load. It is not suited for setups that require motorised zoom or remote focal-length adjustment.

Highlights

  • Increases focal length 1.5x for tighter field of view
  • Mounts between C-mount lens and camera for secure fit
  • Japanese manufacture for reliable optical quality
  • Backed by three-year manufacturer warranty

Specifications

BrandComputar Ganz
ModelEX1.5C

Questions about this item

How do I install the EX1.5C extender between my C-mount lens and camera, and what is the common mistake to avoid?

Screw the extender onto the camera's C-mount first, then attach the lens to the extender; the common mistake is reversing this order, which prevents the lens from seating correctly.

What maintenance or replacement will the EX1.5C extender need over time?

The extender has no moving parts or electronics, so it requires no scheduled maintenance; replacement is only necessary if the optical glass is scratched or the C-mount threads are physically damaged.

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