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March 14, 2003
Specifications of
DPS I Series
  DPS I
Model 7x35 8x40 10x50 8-16x40
Type Porro-prism type binoculars
Magnification 7x 8x 10x 8-16x
Effective Diameter of
Objective Lens		 35 mm (in dia.) 40 mm (in dia.) 50 mm (in dia.) 40 mm (in dia.)
Diameter of Exit Pupil 5 mm (in dia.) 5-2.5 mm (in dia.)
Actual Field of View 9.3 degrees 8.2 degrees 6.5 degrees 5-3.4 degrees
Apparent Field of View 65.1 degrees 65.6 degrees 65.0 degrees 40.0-54.4 degrees
Field at 1000 m 162 m 143m 114m 87-59 m
Relative Brightness 25 25-6.3
Eye-Relief 12 mm 10-12 mm
Diopter Adjustment Range Over +- 2 m -1 Over +- 1 m -1
Eye Interval Adjustment
Range		 60-70 mm
Near Focus Distance 3 m 4 m 6 m 10 m
Weight 650 g 710g 855 g 790 g
Width ( at maximum eye
interval )		 180 mm 182 mm 191 mm 182 mm
Length 119 mm 139 mm 178mm 152 mm
Thickness ( at maximum
eye interval )		 58 mm 58 mm 63 mm 58 mm
Lens Composition 5 elements in 3 groups 6 elements in 4 groups
Coating Monolayer coating
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*Olympus Optical Co., Ltd. was changed to OLYMPUS CORPORATION as of October 1, 2003.
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