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Zeiss DTI 4/50
Zeiss's 640×512 long-range monocular: 50 mm F1.0 lens, 25 mK, 9° field of view, about 2,635 m stated detection, 32 GB memory, IP66.
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Manufacturer specification
| Technology | Thermal |
|---|---|
| Sensor | 640×512 |
| Pixel pitch | 12 µm |
| NETD | ≤25 mK |
| Lens | 50 mm |
| Magnification | 2.9–11.6x |
| Digital zoom | up to 4x |
| Detection range | 2,635 m |
| Field of view | 9° |
| Display | AMOLED 1024x768 |
| Recording | photo and video |
| Wi-Fi / app | yes |
| Battery life | up to 7 h |
| Battery | built-in Li-ion |
| Weight | 470 g |
| Water resistance | IP66 |
Figures as published by Zeiss (source). A spec that is not listed is one the maker does not state, not a zero. Detection range is for a 1.8 m object under the maker's conditions; recognition is typically a third of it.
Type: Thermal monoculars Brand: Zeiss
The DTI 4/50 is the long-lens model of Zeiss's 640-sensor DTI 4 range. Its 640×512, 12 µm detector is quoted at 25 mK and sits behind a 50 mm F1.0 lens, giving a 2.9x base magnification, a 9° field of view, digital zoom in 0.5x steps to 11.6x and a stated detection range of about 2,635 m. The sensor refreshes at 50 Hz.
It has a 1024×768 AMOLED display, records to 32 GB of internal memory and streams over 2.4 GHz Wi-Fi to the Zeiss Hunting app. The built-in battery charges over USB and is rated at 7 hours. The body is IP66 and weighs 470 g at 206 mm long. Figures are from the UK retailer's copy of Zeiss's specification sheet.
It suits open hill, moor and large fields where identifying something at 400 m or more is the job, and buyers who want Zeiss's image processing with a 640 sensor. The DTI 4/35 on the same sheet is the wider-angle alternative.
Amazon UK listings of this model
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