HIKMICRO Lynx 3.0 25mm Thermal Monocular LH25
- CCTV Lens Guide
- Hard Drive Size Guide
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, frame rate settings, and whether you have H.265 encoding enabled or not to save space (We advise turning it on to double the capacity shown below with ease).
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 (to perhaps double or more these figures again).
|
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 2 Terabytes for a 4 x 4/5MP HD camera setup, as this should give you approx 2 weeks using H.265 @ 20fps and that is on continuous, not motion-detected recording.
(You may only require the full 25 frames per second on certain cameras if things are fast-moving - ie above a till)
You can also use the Hikvision online calculator to work out what works best for you specifically: https://tools.hikvision.com/ca...
(All of our hard drives come fitted and are CCTV-specific from one of the major brands)
The Lynx 3.0 , redefining entry-level thermal imagers.The HIKMICRO Lynx 3.0 LH25 is built for professionals requiring extended range and precision. With a 384x288 thermal detector and a 25mm F1.0 lens, it delivers 2.5x base magnification, a 10.5° field of view, and a 1200-metre detection range, ensuring exceptional long-distance performance. Driven by AI Image Pro 3.0 and Zoom Pro algorithms, the LH25 enhances image detail and consistency under all lighting conditions. Its HSIS shutterless system ensures fluid, silent image processing for uninterrupted use in tactical or wildlife applications. Weighing only 328.5 grams, the LH25 combines portability with rugged dependability. The replaceable 18650 battery powers up to 4.5 hours at -20°C, ensuring sustained operation for demanding professionals. Designed for open landscapes and technical use, it sets a new standard in thermal imaging efficiency.
- Image Sensor VOx Uncooled Focal Plane Arrays
- Max. Resolution384 × 288
- Frame Rate50 Hz
- Pixel Interval12 μm
- Response Waveband8 μm to 14 μm
- NETDLess than 15 mK (@25°C), F#=1.0
- Lens (Focal Length)25 mm, F1.0
- Focus ModeFocus Wheel
- Min. Focusing Distance3 m
- Magnification2.5 × - 20 × (8×)
- Field of View (H × V), Degrees / m @100 m10.5° × 6.4° / 18.4 m × 11.2 m
- Detection Range1200 m
- Display1920 × 1080, 0.49 inch, AMOLED
- Contrast AdjustmentYes
- Brightness AdjustmentYes
- PalettesBlack Hot, White Hot, Red Hot, Fusion, Red Monochrome, Green Monochrome
- Exit Pupil6 mm
- Eye Relief20 mm
- Diopter (Range)-5 D to +3 D
- Tone AdjustmentCold, Warm
- Zoom ProYes
- HSIS (HIKMICRO Shutterless Image System)Yes
- Image Pro 3.0Yes
- Sync ProYes
- Battery Type Replaceable and rechargeable 18650 battery
- Protection Level IP67
- Weight 328.5 g with Battery
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