Hikvision HV0415D-MP 3MP 4–15mm Auto-Iris Varifocal CCTV Lens with CS Mount & IR Support

Model: HV0415D-MP

Who This Is For

For installers and integrators who need to match a replacement or upgrade lens to an existing CS mount camera body without swapping out the entire unit. The Hikvision HV0415D-MP is a 3MP varifocal lens covering a 4-15mm focal range, built with an auto-iris and IR correction for use in outdoor or mixed-light environments. It suits situations where the field of view needs to be set on-site - a corridor that narrows, a car park entry with variable depth, or a retrofit job where the original fixed lens no longer covers the required area. Technicians specifying lenses separately from camera bodies, or sourcing a matched replacement for an existing Hikvision box camera installation, will find the HV0415D-MP a practical fit for 3MP CS mount housings.

What This Lens Actually Does

Who Buys This Model

• Security installers retrofitting box cameras: When an existing CS mount box camera has a worn or inadequate fixed lens, replacing the lens alone is far more cost-effective than replacing the whole camera. The HV0415D-MP slots in and restores full 3MP image quality.
• Integrators specifying camera bodies and lenses separately: Some installers source box camera bodies and lenses independently to match specific sensor sizes or fields of view. The 4-15mm range covers a wide range of mounting distances and site geometries in a single SKU.
• Technicians adjusting coverage zones on existing installations: A site where the monitored area has changed - a new fence line, a building extension, a repurposed loading dock - can often be resolved by swapping to a varifocal lens rather than moving the camera mount point.
• Day/night outdoor camera upgrades: Installers upgrading an outdoor CS mount camera to IR capability need a lens that will not blur in IR mode. The IR-corrected design makes this a usable choice for external positions where the camera operates across both day and night lighting conditions.

Honest Assessment

The HV0415D-MP does what a good varifocal lens should: it gives the installer the ability to set field of view on-site, manages changing light conditions through auto-iris, and maintains focus integrity when the camera switches to IR at night. The 3MP optical rating means it keeps pace with modern sensor resolutions up to 3MP without becoming the weak link in image quality. These are practical advantages in retrofit and new-install scenarios where a fixed lens would require compromise on either angle or distance coverage. What this lens will not do is replace the camera body itself - if the sensor, image processor, or housing is the problem, the lens is not the solution. It also will not fit C mount bodies without a 5mm adapter ring (not included). For buyers who need a complete camera unit rather than a standalone lens, the full range of box cameras and varifocal bullet cameras is available through Security Australia.

Before You Buy

Quick Fit Check

• Good match if: You have a CS mount box camera up to 3MP resolution that needs a replacement or upgraded lens, and the installation position requires the ability to set focal length on-site between 4mm and 15mm.
• Good match if: The camera is mounted outdoors and switches between day and IR night mode - the IR-corrected optics and auto-iris are both relevant to maintaining usable image quality across both lighting conditions.
• You may need a different model if: Your camera is a 4MP or higher resolution sensor - a lens rated beyond 3MP would be more appropriate to avoid the optics limiting the sensor output. Check the varifocal lens range for higher-resolution rated options.

Key Features & Technical Specifications

Real-World Scenarios

How It Compares

• Choose this if: You need a 3MP-rated varifocal lens with auto-iris and IR correction on a CS mount camera body, and the installation requires on-site focal length adjustment between 4mm and 15mm.
• You may need a different model if: Your camera sensor exceeds 3MP - a higher resolution rated varifocal lens would be more appropriate to avoid the optics becoming the resolution ceiling on your system.
• Pairs well with: CS mount box camera bodies rated to 3MP, particularly those used in outdoor positions with IR illuminators where auto-iris and IR-corrected focus are both relevant to image quality.

Common Questions

1. Will this lens fit my existing camera body?

   Only if your camera body has a CS mount interface. The HV0415D-MP uses a CS mount, which is standard across most professional box cameras. C mount bodies look similar but have a different flange distance - a CS lens will not focus correctly on a C mount body without a 5mm adapter ring. Check your camera datasheet before ordering.

2. Does this lens work with a 2MP camera body?

   Yes. The HV0415D-MP is rated to 3MP, so it will comfortably resolve what a 2MP or 1080p sensor is capable of capturing. A lens rated below the sensor resolution would limit image quality - fitting a 3MP rated lens to a 2MP sensor means the optics are not the restriction.

3. What does auto-iris mean and do I need it?

   Auto-iris means the lens aperture adjusts automatically based on the amount of light reaching the sensor. If your camera is in an outdoor position where light levels change significantly between day and night - or is pointed toward a bright sky or reflective surface - auto-iris prevents overexposure in bright conditions and maintains usable exposure as light drops. Fixed-iris lenses cannot do this and require the camera's electronic shutter alone to compensate, which is less effective.

4. Why does IR correction matter on a varifocal lens?

   Visible light and infrared light have different wavelengths and focus at slightly different distances through the same optics. A lens without IR correction will appear sharp in daylight but shift out of focus when the camera switches to IR mode at night. The HV0415D-MP is IR corrected, meaning the focal point remains consistent when the camera operates in IR - this is important for any outdoor position where the camera uses IR illumination at night. Suppliers including Security Australia carry IR-corrected lenses specifically for this reason.

5. Does this lens work with a 4MP or higher resolution camera?

   No - not at full sensor resolution. The HV0415D-MP is rated to 3MP. Fitting it to a 4MP or higher sensor means the lens becomes the limiting factor in image resolution and you will not get the full output the sensor is capable of. For 4MP and above camera bodies, a lens rated to match or exceed that sensor resolution is the correct choice.

6. Do I need to adjust anything after fitting the lens?

   Yes. After setting the zoom ring to your chosen focal length, you need to adjust the back-focus on the camera body to achieve a sharp image. The back-focus adjustment is on the camera, not the lens. Set it under the typical lighting conditions the camera will operate in most of the time, then confirm the image remains sharp when the camera switches to IR at night. IR-corrected lenses like the HV0415D-MP are designed to minimise focal shift between day and IR modes, but back-focus should still be verified after fitting.

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