4K 8MP 2.8-12mm Vari-Focal Lens

Why Choose This 4K Vari-Focal with Smart Shield Systems

• Dial-in framing remotely (wide overview to tighter detail) using the motorized 2.8–12 mm lens.

• Clean PoE installation with sealed junctions and tidy cable management.

• Expert tuning of WDR, IR, and bitrate so faces, entrances, and vehicle lanes look great day and night.

Key Features

• 4K Ultra HD (8MP) imaging with efficient H.265/H.265+ compression.

• Motorized 2.8–12 mm lens with horizontal FOV ~108° to ~30° (model dependent).

• True WDR ≈120 dB to handle bright doorways and mixed lighting.

• IR night vision typically up to ~40 m (131 ft); some bullet models reach ~60–80 m.

• Rugged build: many units are IP67 weather-sealed and IK10 vandal-resistant (domes).

• Edge storage: microSD slot on many models (often up to 256–512 GB).

Technical Highlights (At-a-Glance)

• Resolution / Rate: up to 3840×2160 (model-dependent 20–30 fps)

• Lens / FOV: 2.8–12 mm motorized, ~108°–30° horizontal FOV range

• Low light: 0 lux with IR; IR to ~40 m typical (select bullets ~60 m+)

• Compression: H.265/H.265+ (vendor dependent)

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

• Rugged: IP67 weather rating; IK10 on vandal-resistant domes

Compatibility Notes

• Works with most modern NVR/VMS platforms via ONVIF (Profile S); we’ll verify specific stream/event mapping for your recorder.

• Available in dome, turret, and bullet housings; we’ll spec the form factor and exact datasheet for your site.

Popular Use Cases

• Entrances & lobbies: start wide, then tighten view to capture faces with WDR against bright doors.

• Driveways, gates & alleys: zoom to lanes or choke points; use longer-range IR on bullet variants.

• Loading zones & small lots: adjust focal length seasonally without moving the camera.

Frequently Asked Questions

How much zoom range does 2.8–12 mm give me?

A lot. You can go from a wide ~108° view at 2.8 mm to a tighter ~30° view at 12 mm—perfect for dialing in doors, lanes, or cash wraps.

How well does it work at night?

Very well for typical scenes: integrated IR is commonly rated to ~40 m (131 ft), and some 8MP bullets list up to ~60–80 m. We tune exposure and IR to avoid washout.

Do I need a power outlet at the camera?

No—PoE carries power and data over one Ethernet cable.

Can it record without an NVR?

Many models include a microSD slot (often 256–512 GB) for edge backup; we usually pair this with NVR storage for redundancy.

Ready for Flexible, 4K Coverage?

Smart Shield Systems will specify the ideal 4K 8MP 2.8–12 mm Vari-Focal model (dome/turret/bullet), install it cleanly with PoE, and tune WDR/IR/bitrate—so you get the detail you need, day and night.