Product #: 522012
UPC #: 740035760868

Zeiss Monocular - 3x12 T*

Sale price$399.99
Size: 3x12 T*
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Specs Highlights:
3 – 8 ×
Effective lens diameter
10 – 25 mm
Field of view at 1,000 m (yds)
88 – 220 m (264 – 660 ft)
Close focusing distance
0.2 – 4 m (0.7 – 13.1 ft)
58 – 119 mm (2.3 – 4.7 ")
23 – 77 g (0.8 – 2.7 oz)

For sporting events, in the theatre or in the great outdoors, the Monos are the masters of versatility, fitting snugly in a jacket pocket or handbag. Depending on the model, they are ideal for use as magnifying glasses or even for binocular amplification. They can turn your binoculars into a spotting scope by tripling the magnification. Even the smallest details can be seen: nothing escapes their notice. Whether you are watching dragonflies in the reeds or birds at a great distance, the Monos are an often undervalued but extremely useful aid to nature observation.

Available Models:

  • Mono 3x12 T*
  • Mono 4x12 T*
  • Mono 6x18 T*
  • Mono 8x20 T*
  • Mono 10x25 T*
  • MiniQuick 5x10 T*

Always at hand

Small, light and sporty - the compact Monos are always handy for nature excursions, concerts or sporting events. They bring objects to arm's length at lightning speed so you can see every single detail. A diopter adjustment is possible to up to +/- 4 diopters.


ZEISS T* Coating

ZEISS T* coating is a guarantee of the brilliant, high-contrast images­­ which you will experience above all in adverse light conditions and in the twilight. Behind it, however, there is no specific formula for building up the layers. Instead, it is a technology that is constantly adjusted to suit new glass materials and requirements, which varies from lens to lens.

Triple amplification

The Mono 3x12 T* can transform your Victory FL and Conquest binoculars into a high-performance spotting scope in the blink of an eye by tripling the magnification. A practical alternative to a spotting scope, which pays off on long and varied excursions, such as birdwatching or insect hunting. The device can be securely fixed onto the eyepiece by means of an adaptor ring, opening up a hugely detailed visual experience. The Mono 3x12 T* can also be used on its own as a miniature telescope or as a magnifying glass at close range. The Mono booster is so small that you can easily take it with you wherever you go.

Close range

The Mono models 4x12 T* and 6x18 T* with their close focus capabilities are suitable for use as a magnifying glass or visual aid. This makes them extremely versatile. Whether you are watching butterflies, reading a street plan or walking map, or making out letters and numbers on a bus timetable, the Monos are a practical tool.

Magnification 3 – 8 ×
Effective lens diameter 10 – 25 mm
Exit pupil diameter 2 – 4 mm
Twilight factor 6 – 15.8
Field of view at 1,000 m (yds) 88 – 220 m (264 – 660 ft)
Subjective viewing angle 29° – 51°
Close focusing distance 0.2 – 4 m (0.7 – 13.1 ft)
Diopter adjustment range − 4.0
Lens type Achromat
Prism system Schmidt-Pechan
LotuTec -
Water resistance -
Operating temperature − 20°C
Length 58 – 119 mm (2.3 – 4.7 ")
Weight 23 – 77 g (0.8 – 2.7 oz)


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