Ferngläser
Binoculars
DOCTER 8x42 B/CF
DOCTER 10x42 B/CF
Gebrauchsanleitung
Operating instructions
ENGLISH
Maintenance and Protection
Prism binoculars do not need special care, they are nearly of attendance.
If necessary the outer lens surfaces should be cleaned with a fine hairbrush
or a soft piece of cloth. Coarse dust should remove through wash or blow
before wiping.
Do not use chemical solvents and keep it in dry place!
Technical data
DOCTER 8x42 B/CF
DOCTER 10x42 B/CF
Magnification
8x
10x
Entrance pupil diameter
42 mm
42 mm
Field of view at 1000 y
393 ft
342 ft
Close distance
10 ft
10 ft
Exit pupil diameter
5,3 mm
4,2 mm
Eye relief
> 16 mm
> 14 mm
Dioptre adjustment range
+/-3 dpt
+/-5 dpt
Range of interpupillary distance
56/72 mm
56/72 mm
Water tightness
3 m
3 m
Twilight number
18,3
20,5
Length
139 mm
139 mm
Width
125 mm
125 mm
Mass
860 g
843 g
Warning reference
Due to the intense focusing of light, direct observation of the sun with a
pair of binoculars may cause damage to the eyes and is to be avoided.
Instruction for use
The DOCTER
®
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.
Operation instruction
• 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 fig. 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 fig. 2) till the object is clear and high contrast.
A possible defect of the eyes of ± 3 dioptres with the 8x42 binoculars and ± 5
dioptres with the 10x42 binoculars can be compensated by turning the (3 fig.
1). 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.
• Distance adjustment
To observe an object at different distances both clearly and in high contrast it
is useful to adjust binoculars to a special distance. While observing the object
the midwheel (2 fig. 1) has to be turned right or left till the clearest and richest
in contrast vision is reached. An adjustment of the Focusing and defective
sight assistance is not nessesary.
• Eye piece adjustment
The binoculars are models for spectacle wearers. Normal sighted people
employ the binoculars with twist-up eyecups. Wearer of glasses just turn the
eyecups down to use the complete panorama of binoculars.
ENGLISH
Analytik Jena AG
Niederlassung Eisfeld
Coburger Straße 72
D-98673 Eisfeld
Tel.:
(0 36 86) 371-115
Fax:
(0 36 86) 32 20 37
E-mail:
www.docter-germany.com
