Dahua IPC-HFW2649SP-S-IL-0280B – 6MP WizSense Smart Dual Light Fixed Lens Bullet Network Camera
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua IPC-HFW2649SP-S-IL-0280B – 6MP WizSense Smart Dual Light Fixed Lens Bullet Network Camera
The Dahua IPC-HFW2649SP-S-IL-0280B is part of the WizSense 2 Series, combining advanced artificial intelligence with high-quality imaging to provide accurate and efficient video surveillance. Equipped with a 1/2.7" progressive CMOS sensor, the camera captures detailed 6MP video at a maximum resolution of 3288 × 1850, ensuring clear identification of people, vehicles and events. Featuring Smart Dual Light technology, the camera intelligently switches between infrared and warm white illumination according to the scene and detected activity. In Smart mode, infrared illumination is used for routine monitoring, whilst the warm light automatically activates when a human or vehicle is detected, enabling full-colour recording of important events and improving evidence quality. Powered by Dahua WizSense AI technology, the camera supports perimeter protection functions including intrusion detection and tripwire detection with accurate human and vehicle classification. SMD Plus (Smart Motion Detection) further reduces false alarms caused by animals, weather conditions and other non-relevant movement.
KEY FEATURES
- 6MP resolution (3288 × 1850)
- 1/2.7" progressive CMOS image sensor
- Fixed 2.8 mm lens
- Smart Dual Light technology
- Up to 30 m IR illumination
- Up to 30 m warm light illumination
- AI human and vehicle classification
- SMD Plus intelligent motion detection
- Perimeter protection (tripwire and intrusion detection)
- Built-in microphone for audio recording
- 120 dB True WDR
- Smart H.265+ and Smart H.264+ compression
- MicroSD card support up to 256 GB
- ONVIF Profile S, G and T compatible
- PoE (IEEE 802.3af) support
- IP67 weatherproof metal housing
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