In Duovid series there are two models, 8+12x42 and 10+15x50 and these two are the only zoom binoculars with variable magnification produced by the premium class manufacturer. Leica introduced them in 2001.
Often, zoom binoculars are quite demanding to make and have several problems with the synchronization of the focusing system. Leica managed to solve this problem simply by allowing only two possible magnifications on the Duovid binoculars and not a continuous magnification range. Simply put, the binoculars can be used with 8x (10x) or 12x (15x) magnification and all that can be seen in between is unclear and blurred. Set your diopter value (ADC Automatic diopter) and switch between the two magnifications. When switching, the image remains in focus so re-focusing will not be needed.
Usually, zoom binoculars are known for being of lower quality and bulky, but Leica Duovid impresses with its compactness and excellent optical performance. There should be no doubt about the quality of the product when buying one of these, since they are Fully Multicoated and have Roof prisms with phase-correction coatings P40, HDC coating (Highly Durable Coating) for increased resistance of external lens surfaces, and HighLux-System HLS™ for the ultimate image brightness, vivid colors and a high-contrast. The field of view is wide and the optical performance given by these binoculars is unique and versatile at the same time.
Leica Duovid binoculars are solidly made, but very elegant and classic-looking, with smooth, ergonomically shaped armoring. They are completely sealed and filled with nitrogen gas for water and fog resistance. Duovid binoculars have multi-position eye-cups offering 3 click-stops.
Since Zoom binoculars are very rare, they are also less-known and therefore less popular among binocular enthusiasts and other optical device users.
All Duovid models are made in Germany.
This model offers switch-over magnification from 8x to 12x42. When viewing with 8x magnification, the image is steady. 12x magnification gives you a more detailed image but it is recommended to mount the binoculars on a tripod for easier observation. The binoculars are great for scanning smaller objects and detailed observation even over long distances and in low-light situations.
The product comes with 10 years of warranty. You can read more about the warranty policy here.
|Binoculars series||Leica Duovid|
|In production since||2001|
|Type of prism||Roof - Schmidt/Pechan|
|Diopter adjustment||+3 / -3 dpt|
|Lens size diameter.||42mm|
|Minimal exit pupil.||3.5mm|
|Maximal exit pupil.||5.25mm|
|Field of view - FOV...||132.08m/1000m|
|Field of view (angular).||6.76°|
|Apperent FOV (angular).||0°|
|Minimal field of view...||90m/1000m|
|Maximal field of view...||118m/1000m|
|Eye relief distance.||16.23mm|
|Minimal eye relief.||14.5mm|
|Maximal eye relief.||14.5mm|
|Closest focusing distance.||3.92m|
|Twilight Factor||18.33 / 22.5|
|Lens coatings||Fully Multicoated|
|Working temperature range|
|Diopter setting location||On both eye-pieces|
|Minimal interpupillary distance.||61.71|
|Maximal interpupillary distance.||83.03|
|Type of Body||Single hinge|
|Built in Range finder||No|
|Image stabilization (IS)||No|
|Able to float||No|