Chinese Binoculars Manufacturer and Exporter since 1998              

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BT 70 DL
BT 70 DLBT 70 DL
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BT 70 DL

Light weight 70mm binocular telescopes 45 deg. oculars


Customers have been complaning that our long-range observation binoculars are just for men - what about the products for women who usually dislike the black, old-fashioned, rubberized look and want something much less heavier.  BT 70 DL is such a product - light enough, only about 3.6 kgs, pained body in white.  As all our binocular telescope, it has 45 deg. ocular and 1.25" focuser which accepts all the standard 1.25" eyepieces.

It comes with a pair of factory 16x eyepieces and alum case.  The fork mount and the alum tripod are optional.



Objective size

70 mm

Standard factory eyepiece



1.25" non-proprietary helical focuser

Focus system



Porro / BAK4


Fully Broadband Multi-coated

Focal length

375 mm

Field of view at 1000m

16x- 55 m

Angle of View

16x- 3.1º

Exit Pupil distance

16x- 22 mm

Exit pupil diameter

16x- 4.4 mm

Inter-pupil distance

58-78 mm


Aluminum case

Net weight

3.6 kg

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