Dahua
SDT6C425-4P-GB-APV-0280
PTZ Camera · 3.7MP (2560×1440)
- • 180° HFOV at 5-125mm
- • 2500 m effective range
- • 200 m IR illumination
- • Low-light / ColorVu sensor
Side-by-side comparison · within brand
Dahua SDT6C425-4P-GB-APV-0280 vs Dahua SD8A440-HNF-PA
Spec-by-spec comparison of two ptz camera models, with EN 62676-4 lens math and design recommendations.
Dahua
SD8A440-HNF-PA
PTZ Camera · 3.7MP (2560×1440)
- • 62° HFOV at 5.6-223mm
- • 500 m effective range
- • 500 m IR illumination
- • Low-light / ColorVu sensor
Specification side-by-side
| Dahua SDT6C425-4P-GB-APV-0280 | Dahua SD8A440-HNF-PA | |
|---|---|---|
| Manufacturer | Dahua | Dahua |
| Form factor | PTZ Camera | PTZ Camera |
| Resolution | 3.7MP (2560×1440) | 3.7MP (2560×1440) |
| Focal length | 5-125mm | 5.6-223mm |
| Horizontal FOV | 180° | 62° |
| Effective range | 2500 m | 500 m |
| IR distance | 200 m | 500 m |
| Low-light / ColorVu | Yes | Yes |
Verdict
Dahua SDT6C425-4P-GB-APV-0280 reaches further (2500 m vs 500 m) — better for perimeter and parking-lot wide shots. Dahua SD8A440-HNF-PA has stronger IR illumination (500 m vs 200 m) — better for unlit corridors and night perimeter.
Frequently asked questions
Is Dahua SDT6C425-4P-GB-APV-0280 better than Dahua SD8A440-HNF-PA?
Dahua SDT6C425-4P-GB-APV-0280 reaches further (2500 m vs 500 m) — better for perimeter and parking-lot wide shots. Dahua SD8A440-HNF-PA has stronger IR illumination (500 m vs 200 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 TodAidesign 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 SDT6C425-4P-GB-APV-0280 vs Dahua SD8A440-HNF-PA?
Dahua SDT6C425-4P-GB-APV-0280 has a 180° horizontal FOV at 5-125mm. Dahua SD8A440-HNF-PA has a 62° horizontal FOV at 5.6-223mm. Dahua covers a wider scene at the same distance; the FOV calculator on TodAidesign converts these into linear meters of coverage at any chosen target distance.
Which camera has stronger IR illumination?
Dahua SD8A440-HNF-PA reaches 500 m of IR illumination versus 200 m for Dahua SDT6C425-4P-GB-APV-0280. 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. TodAidesign 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 180° vs 62° 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.
Browse all cameras →
Verified in-stock camera specifications.
Test both cameras in your project
Drop Dahua SDT6C425-4P-GB-APV-0280 and Dahua SD8A440-HNF-PA on a real satellite map or imported floor plan. See live FOV cones, DORI rings, BOM and cable schedule in seconds.