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)
Product Description
The compact and lightweight NVMT Spartan 4x50 offers 4.0x image magnification and a 15° field of view. The Yukon NVMT (Night Vision Multi Task) Spartan range is the most ergonomically designed, aesthetically pleasing, well featured and highest performing Gen 1 night vision monocular series on the market today.
Powered by a single 3v Lithium CR123A battery (not included), they are small, light and easy to use. With the versatility to change lenses and add an array of optional accessories that allow head or weapon mounting, camera or audio attachment or simple performance enhancement, the NVMT Spartan range is probably the most successful Gen 1 monocular series of all time.
Having spawned many imitations, these models are still the benchmark for budget night vision systems and continue to top best seller lists because of their performance and price. All these Yukon NVMT Spartan models feature a stylish and tactile soft touch green/black sure-grip ABS plastic bodyshell with partial rubber armouring for extra hold and protection and a built-in IR illuminator to enhance performance and allow use in very low light or total darkness.
With smooth and intuitive focusable objective and ocular lenses there is also an integral slot built-in to the bodyshell to retain the lens cap while the monocular is in use. Operational status LED’s illuminate green for the image intensifier tube and red for the IR illuminator, helping to preserve battery life and serving to alert the user should the device accidently be switched or left on.
With the benefit of twin ¼” Whitworth threads built-in for secure mounting to tripods and as attachment points for the numerous accessory options available to enhance performance and function, each unit is individually serial numbered and comes supplied with a secure detachable wrist strap and soft carry case with convenient belt loop.
Technical Specification
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Full Warranties & Support
14 days for return
