User guide

Operation Instructions
The DOCTER
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Binoculars acquired by you is a leading product of fine-mechanical
precision. It is a product with highest requirements of the optical performance after
latest development of the optics calculation and optics technology concerns with solid
processing. All binoculars of this series are implemented as spectacle wearer models
and they are waterproof.
Technical data
DOCTER 8x42 ED 10x42 ED
Magnification 8x 10x
Entrance pupil diameter 42 mm 42 mm
Field of view at 1000 m 115 m 105 m
Close distance 2,5 m 2,5 m
Exit pupil diameter 5,3 mm 4,2 mm
Eye relief 19,5 mm 15,5 mm
Dioptre adjustment range ±3,0 dpt ±3,0 dpt
Range of interpupillary
distance
56 – 72 mm 56 – 72 mm
Water tightness 1 m
Twilight number 18,3 20,5
Length 154 mm 154mm
Width 129 mm 129 mm
Mass 670 g 680 g
Eye distance
To reach a great and contrast panorama the binoculars have to be adjusted to the
different eye distance of different users. This adjustment happens by bending the
central hinge (1) until both fields of vision of the right-hand and left-hand telescope
completely coincide during observing any object .
Focusing and defective sight assistance
Observe any object with the left eye trough the left ocular and turn the mid-wheel (2)
till the object is clear and high contrast.
A possible defect of the eyes of ± 3,0 dioptres can be compensated by turning the
dioptre adjustment (3). Thereby observe the same object with the right eye and turn
the diopter setting wheel till the object impression is clear and high in contrast.