Enhance your observation experience.

Observation at night with thermal imaging opens new doors: birds and other wildlife can be located and identified without disturbance from a light source. With its DTI 3 thermal imaging cameras, ZEISS always offers the right optical devices for nighttime observation. Even in complete darkness, they produce detailed images for an unforgettable experience.

Thanks to an ergonomic design and a high-resolution HD LCOS display that delivers detailed images, even in the darkness and at night, ZEISS offers a specialized solution suitable for even the most difficult lighting conditions.

With 1.8 × optical magnification and a range of 880 m, the ZEISS DTI 3 / 25 provides the best conditions for a perfect overview at short distances. The wide field of view of 26 m and fine, gradual zoom settings combine magnification and detail recognition at a distance of 100 m.


Extra Long Battery Life

The ZEISS DTI 3 has an impressive battery life of 10 hours. The standby feature conserves battery power by automatically shutting off the thermal imaging camera after 60 minutes of inactivity.

Contrast Boost on
Contrast Boost off

Contrast Enhancement in Foggy Conditions

The Contrast Boost feature maximizes contrast to see as much detail as possible, even in foggy or humid conditions.

Outstanding optics in familiar ZEISS quality

The ZEISS DTI 3 models owe their outstanding optical performance to the fact that the lens, sensor, electronics, screen, and eyepiece are all perfectly compatible. The high-resolution HD LCOS display delivers images with the exact level of detail you need to reliably identify birds and wildlife – even in total darkness.

Perfect Ergonomics

The DTI 3 family of thermal imaging cameras stands out thanks to its unique ergonomics – the ErgoControl operating concept, with its intelligently positioned buttons, makes it easy to intuitively activate all of the device's functions. The perfect ergonomic design offers excellent handling in cold and dark conditions and ensures that both right-handed and left-handed users can operate the device comfortably.

High-precision zoom

It's often the details that make the difference: The fine, gradual zoom adjustment in increments of 0.5x offers the perfect combination of magnification and detail recognition. This means that nature observers can quickly recognize even small details, which is the key to accurately identifying them in the dark.

Other thermal imaging cameras

Perfect Shape

The innovative design of the optics allows for one-handed operation. This is optimized for both left-handed and right-handed users. The ergonomic shape of the device enables a natural posture of the hand, with the fingertips resting directly on top of the controls. This favors long and fatigue-free observation.

Carrying Strap

The strap of the DTI 3 is attached to two connection points, similar to binoculars. As a result, the device can be lowered quickly and quietly. You can also take the device back in your hand without looking, as it is securely placed around your neck, without dangling uncontrollably.


The ZEISS DTI Thermal Imaging Cameras are a game changer for night time observation. Whether you are looking for owls, at nocturnal migration or if you just want to observe wildlife in difficult light conditions without using a disturbing light source.

Its excellent optics deliver detailed images, even in the darkness, allowing an accurate identification. The ZEISS DTI 3/35 delivers unique observation experiences and unforgettable moments. Its ergonomic design and the intelligent arrangement of the control buttons make the device exceptionally easy to use and its operation extremely intuitive. The high-resolution HD LCOS display combined with 0.5x zoom increments delivers detailed images for accurate identification. As a result, the device opens up a completely new world of nature observation!

Perfect Ergonomics

Thanks to the ErgoControl operating concept and its intelligent placement of the buttons, each function can be controlled intuitively and the perfectly shaped control elements can be identified quickly – even when wearing gloves.

ZEISS Quality Optics

The high resolution HD-LCOS display allows for best detail recognition and a comfortable viewing experience.

Precise Zoom

The fine, gradual zoom adjustment in 0.5 increments offers the perfect combination of magnification and detail recognition for reliable spotting.


Color Modes

The ZEISS DTI 3 offers four different color modes, so you can choose the setting that best fits your needs. 'Black hot' and 'white hot' deliver images with a high level of contrast. These settings are great for detection, recognition and identification. When observing in areas with vast vegetation, 'red hot' allows for a  fast detection of heat signatures. The color mode 'rainbow' is ideal for identifying the smallest differences in  temperature.


High Frame Rate

The ZEISS DTI 3 features a display frame rate of 50 Hz. This refers to the number of times per second your monitor can redraw the screen. A higher display frame rate results in decreased flickering of the image, thereby reducing eye strain when using for several hours at a time.


Picture-in-Picture (PiP)

The picture-in-picture function of the ZEISS DTI 3 allows overlying the zoomed image on the visual image. This feature helps to keep sight of the animal you are observing in zoom mode, even when it makes sudden movements. 


Hot Tracking

In 'Hot Tracking' mode, the warmest source in the image is framed with a red square. Finding heat sources in densely overgrown areas and tracking them is therefore easier.

Enhanced Camouflage and Battery-Saving Operation

The DTI 3's LED Off feature provides enhanced camouflage in the dark. The Auto Shutoff feature conserves battery power – the thermal imaging camera automatically shuts off after 60 minutes of inactivity.


Focal length

25 mm



Field of view at 100 m (yds)

26 m (78 ft)

Objective viewing angle

15° x 11°


880 m (960 yd)

Sensor resolution

384 x 288

Sensor pixel pitch

17 μm

Display resolution

1280 x 960

Display frame rate

50 Hz

Display type


Optical magnification


Maximum digital zoom


Zoom steps

1.0x – 4.0x

Vertical adjustment range at 100 m


Lateral adjustment range at 100 m


Adjustment per click at 100 m



Battery type


Battery run time

10 h

Internal memory

15 GB


2.4 Ghz



Livestream function (Video & Photo)



Operating temperature

− 10°C | + 40°C (+ 14 °F | + 104°F)

Length x Width x Height

187 x 60 x 65 mm (7.4 x 2.4 x 2.6")


410 g (0.90 lbs)

ZEISS DTI 3 Thermal Imaging Cameras for Nature Observation


ZEISS Nature Observation Catalogue




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