Specifications for the GPO Passion ED 8x56 (Black/Anthracite - B400), a binocular designed for low-light conditions.
Optics
8x magnification; 56mm objective lens diameter
7mm exit pupil
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Prism system: Abbe-König (specific to this model). While one retailer listed Schmidt-Pechan, most sources—including the US GPO distributor—cite Abbe-König.
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Field of view: 129 meters at 1,000 meters
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Light transmission: 91%–92% (depending on the retailer)
Proprietary GPObright coating boosts total transmission to over 92%
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ED lenses reduce chromatic aberration
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Focusing
Close focus distance: 2.3 meters
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Construction and Dimensions
Magnesium body and bridge; durable aluminum eyepiece tubes
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Waterproof and fogproof; nitrogen-purged
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Does not feature the water-repellent coating found on the HD series
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Length: 192mm; Width: 158mm; Depth: 67mm
Weight: Approximately 1,242–1,245 grams
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