Cameras with 2-4mm Motorized Zoom

Why Choose 2–4 mm Motorized Zoom with Smart Shield Systems

• Dialed-in coverage for entries & interiors: We set the lens near 2.8 mm for ~99° HFOV or tighten toward 4 mm (~80° HFOV) to center on faces and approaches.

• Remote tweaks, no ladder: Motorized 2.8–4 mm adjustment (“point varifocal”) from the app/NVR after install.

• Clean, pro installs: Weather-sealed IP67 housings with neat PoE cabling and IR tuned for your scene.

Key Features

• Motorized 2.8–4 mm lens (ultra-wide varifocal): adjust framing remotely for doors, porches, and small rooms.

• True WDR (up to 130 dB): handles bright backlight at glass entries.

• IR night vision: rated up to ~40 m (131 ft) on representative models for clean low-light coverage.

• Efficient recording: H.265/H.265+ keeps bandwidth and storage in check.

• Open compatibility: ONVIF Profile S/G on many units for broad NVR/VMS support.

Product Specifications (Representative Class)

Optics & Imaging

• Lens: motorized 2.8–4 mm (point varifocal)

• Field of view: ~99.3° (2.8 mm) to ~80.0° (4 mm) horizontal

• WDR: up to 130 dB; 3D DNR, BLC/HLC

• Low light: 0 lux with IR (with IR on)

Video & Storage

• Codecs: H.265/H.265+, H.264/H.264+

• Streams: main/sub/third (model-dependent)

• On-board microSD: up to 512 GB on many models

Housing & Power

• Rating: IP67 weather resistant; compact bullet/turret/dome options vary by SKU

• Power/Network: PoE (802.3af); 10/100 Ethernet

• IR: smart IR, up to 40 m (model-dependent)

Popular Use Cases

• Front/side doors & porches (maximize width at 2.8 mm; tighten if needed)

• Hallways & lobbies where a wide, level view reduces blind spots

• Small parking aprons & walkways needing broad context plus face detail

Frequently Asked Questions

What’s the advantage of a 2–4 mm motorized lens versus a 2.8 mm fixed?

You keep the ultra-wide look but gain the ability to remotely trim the scene (e.g., reduce peripheral clutter and center on faces) without touching the camera.

How wide is the view?

On a representative 4MP unit, it’s about ~99° at 2.8 mm and ~80° at 4 mm horizontally—great for entries and small rooms.

Will it work at night?

Yes. Integrated IR is typically rated to ~40 m, and we tune IR/WDR/exposure so near-field subjects don’t wash out.

Will it integrate with my recorder?

In most cases, yes. Many models list ONVIF Profiles S/G, so they work with a wide range of NVRs and VMS platforms—we’ll verify streams/events for yours.

Ready to Go Ultra-Wide (with Control)?

Smart Shield Systems will specify the right 2–4 mm motorized model, install it cleanly with PoE, and tune framing, WDR, and IR for your exact scene—so you get the full picture, without the blind spots.