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)
Offering users a long detection range with powerful optics and sensitive CMOS sensor to produce a high quality image. Long and short range visibility has been considered in the design, resulting in two built-in IR illuminators; a short range, covert 940nm IR and a more powerful long range IR illuminator.
A 6-12 hour battery life can be achieved by using six AA batteries. A spare battery container is provided with both models, so the batteries can be changed easily in the field.
Specifications:
- Magnification: 6.5-13.0x
- Detection Range: 450m
- Horizontal Field of View: 4.6°
- Display Type: 640x480 LCD
- Sensor Type: 640x480 CMOS
- Battery Life: 12 hrs
In brief the Ranger RT 6.5x42 S Features:
- Enhanced night-time sensitivity
- High magnification
- Long detection range
- Long range IR Illuminator
- Wi-Fi remote review and operation using smartphone
- Recording and live YouTube streaming
- Onboard video & sound recording
- External power supply option
- Protection against bright light sources
- Capturing still images and video is seamless with the Ranger RT’s built-in video recorder. Image and video content is stored internally and can easily be transferred to a PC/laptop via wired connection or Wi-Fi.
Variable Magnification
- The Ranger RT model includes up to 6.5x magnification and features both 2x step-up and smooth, graduated magnification for a truly optimum, customised field of view.
Long Detection Range
- Depending on the model, the Ranger can detect up to 450m away
Stream Vision Compatible
- The highlight of the Ranger RT is the ability to link the device via Wi-Fi with Android and iOS based mobile units using the free mobile application Stream Vision. The Stream Vision software connects the device with Android/iOS devices, which enables you to receive footage in real time mode, to distantly operate the device with your smartphone and to stream the footage captured by the device to direct to Youtube.
Technical Specification
Dimensions
170x116x76 mm
Magnification
6.5-13x
FOV
4.6°
Weight
650g
Lens
42mm
Battery
6x AA
Resolution
640x480 LCD
Generation
Digital
Range
450m
IR Illumination
LED
Sensor Resolution
640x480 CMOS
Battery Life
12hrs
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