Dahua
IPC-HFW7842H-Z4
Bullet Camera · 8.3MP (3840×2160)
- • 40° HFOV at 8-32mm
- • 120 m effective range
- • 120 m IR illumination
- • Low-light / ColorVu sensor
Side-by-side comparison · within brand
Dahua IPC-HFW7842H-Z4 vs Dahua IPC-HFW7842H-Z4-S2
Spec-by-spec comparison of two bullet camera models, with EN 62676-4 lens math and design recommendations.
Dahua
IPC-HFW7842H-Z4-S2
Bullet Camera · 8.3MP (3840×2160)
- • 38° HFOV at 7-35mm
- • 120 m effective range
- • 150 m IR illumination
- • Low-light / ColorVu sensor
Specification side-by-side
| Dahua IPC-HFW7842H-Z4 | Dahua IPC-HFW7842H-Z4-S2 | |
|---|---|---|
| Manufacturer | Dahua | Dahua |
| Form factor | Bullet Camera | Bullet Camera |
| Resolution | 8.3MP (3840×2160) | 8.3MP (3840×2160) |
| Focal length | 8-32mm | 7-35mm |
| Horizontal FOV | 40° | 38° |
| Effective range | 120 m | 120 m |
| IR distance | 120 m | 150 m |
| Low-light / ColorVu | Yes | Yes |
Verdict
Dahua IPC-HFW7842H-Z4-S2 has stronger IR illumination (150 m vs 120 m) — better for unlit corridors and night perimeter.
Frequently asked questions
Is Dahua IPC-HFW7842H-Z4 better than Dahua IPC-HFW7842H-Z4-S2?
Dahua IPC-HFW7842H-Z4-S2 has stronger IR illumination (150 m vs 120 m) — better for unlit corridors and night perimeter. For installation-specific advice — mounting height, tilt, obstacle shadowing, BOM and PoE budget — drop both cameras into CCTVplanner and the FOV cones, DORI rings (per EN 62676-4) and cable schedule render in real time on a satellite map or imported floor plan.
What is the field of view of Dahua IPC-HFW7842H-Z4 vs Dahua IPC-HFW7842H-Z4-S2?
Dahua IPC-HFW7842H-Z4 has a 40° horizontal FOV at 8-32mm. Dahua IPC-HFW7842H-Z4-S2 has a 38° horizontal FOV at 7-35mm. Dahua covers a wider scene at the same distance; the FOV calculator on CCTVplanner converts these into linear meters of coverage at any chosen target distance.
Which camera has stronger IR illumination?
Dahua IPC-HFW7842H-Z4-S2 reaches 150 m of IR illumination versus 120 m for Dahua IPC-HFW7842H-Z4. The further-reaching IR camera is the better fit for unlit yards, parking perimeters and warehouses without permanent lighting.
Can I plan a project mixing Dahua and Dahua cameras?
Yes. CCTVplanner is multi-vendor by design — drop Dahua and Dahua cameras on the same canvas, share the same EN 62676-4 lens math and DORI ring overlays, and consolidate them into one BOM with cable schedule and PoE budget. Vendor design tools (Axis Site Designer, Hikvision HiTools, Dahua Project Design Tool, i-PRO SDT) cannot do this because each speaks only its own catalog.
Continue reading
FOV Calculator →
Convert 40° vs 38° HFOV into linear coverage at any distance.
DORI Calculator →
Compute Detect / Observe / Recognize / Identify ranges per EN 62676-4.
Bandwidth Calculator →
Estimate Mbps per camera for codec, FPS, scene complexity.
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Test both cameras in your project
Drop Dahua IPC-HFW7842H-Z4 and Dahua IPC-HFW7842H-Z4-S2 on a real satellite map or imported floor plan. See live FOV cones, DORI rings, BOM and cable schedule in seconds.