Dahua
SD8A840WA-HNF
PTZ Camera · 8.3MP (3840×2160)
- • 64° HFOV at 5.6-223mm
- • 500 m effective range
- • 500 m IR illumination
- • Low-light / ColorVu sensor
Side-by-side comparison · within brand
Dahua SD8A840WA-HNF vs Dahua SD8A840VI-HNI
Spec-by-spec comparison of two ptz camera models, with EN 62676-4 lens math and design recommendations.
Dahua
SD8A840VI-HNI
PTZ Camera · 8.3MP (3840×2160)
- • 45° HFOV at 5.6-223mm
- • 250 m effective range
- • 350 m IR illumination
- • Low-light / ColorVu sensor
Specification side-by-side
| Dahua SD8A840WA-HNF | Dahua SD8A840VI-HNI | |
|---|---|---|
| Manufacturer | Dahua | Dahua |
| Form factor | PTZ Camera | PTZ Camera |
| Resolution | 8.3MP (3840×2160) | 8.3MP (3840×2160) |
| Focal length | 5.6-223mm | 5.6-223mm |
| Horizontal FOV | 64° | 45° |
| Effective range | 500 m | 250 m |
| IR distance | 500 m | 350 m |
| Low-light / ColorVu | Yes | Yes |
Verdict
Dahua SD8A840WA-HNF reaches further (500 m vs 250 m) — better for perimeter and parking-lot wide shots. Dahua SD8A840WA-HNF has stronger IR illumination (500 m vs 350 m) — better for unlit corridors and night perimeter.
Frequently asked questions
Is Dahua SD8A840WA-HNF better than Dahua SD8A840VI-HNI?
Dahua SD8A840WA-HNF reaches further (500 m vs 250 m) — better for perimeter and parking-lot wide shots. Dahua SD8A840WA-HNF has stronger IR illumination (500 m vs 350 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 SD8A840WA-HNF vs Dahua SD8A840VI-HNI?
Dahua SD8A840WA-HNF has a 64° horizontal FOV at 5.6-223mm. Dahua SD8A840VI-HNI has a 45° horizontal FOV at 5.6-223mm. 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 SD8A840WA-HNF reaches 500 m of IR illumination versus 350 m for Dahua SD8A840VI-HNI. 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 64° vs 45° 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 SD8A840WA-HNF and Dahua SD8A840VI-HNI on a real satellite map or imported floor plan. See live FOV cones, DORI rings, BOM and cable schedule in seconds.