How does the GPO Passion 10x42 ED perform in low-light conditions like dawn and dusk?

Equipped with GPObright fully multi-coated optics and Extra-Low Dispersion glass, the Passion 10x42 ED delivers an impressive 90% light transmission. This ensures bright, high-contrast images well into twilight. However, for deep-night observation or heavy predawn canopy use, a larger 56mm objective model or dedicated thermal unit is recommended.

Are these binoculars heavy for all-day stalking in the Australian bush?

Weighing between 670 g and 725 g with a magnesium-alloy micro-bridge chassis, the Passion 10x42 ED is built for comfortable all-day carry on a neck strap or chest harness. For seamless integration during long treks, we recommend pairing it with the GPO Bino Harness Pro from our range.

Can I mount the GPO Passion 10x42 ED to a tripod for extended viewing sessions?

Yes, these binoculars feature a standard 1/4"-20 threaded tripod adapter interface located beneath the central hinge cap. Because 10x magnification can amplify hand-shake over prolonged stationary glassing periods, mounting them to a tripod is ideal for long-range target spotting and wildlife observation.

Do these binoculars require any electrical certifications or Australian compliance markings?

No, the GPO Passion 10x42 ED is a purely mechanical, passive optical instrument containing no batteries, motors, or electronic components. Therefore, 240V mains compatibility, Australian power plugs, and SAA or RCM electrical compliance certifications are not applicable.

10x42 Binoculars - GPO B363 Passion ED

The GPO PASSION™ ED 10x42 Binocular (MPN: B363) in Dark Brown Earth is a mid-to-long-range roof-prism optical instrument engineered for detailed observation during daylight and twilight. Built with Extra-Low Dispersion (ED) objective lenses and GPObright™ fully multi-coated Schmidt-Pechan BAK4 roof prisms, it achieves 90% light transmission while suppressing chromatic aberration. The optical system is housed in a durable, nitrogen-purged magnesium-alloy chassis weighing approximately 670 g to 725 g, providing waterproof and fogproof performance across varied field environments.

Key Features

ED Optical Elements: Extra-low dispersion glass minimizes colour fringing across high-contrast edges.
GPObright™ Multi-Coatings: Proprietary optical coatings deliver 90% light transmission for clear low-light imaging.
Magnesium Micro-Bridge Chassis: Durable, lightweight body measures 145 mm in length with a protective rubber-armoured finish.
Wide Field of View: Delivers 113 m to 114 m linear coverage at 1,000 m (6.5° angle of view).
Close-Focus Capability: Resolves targets as near as 2.0 metres.
Tripod Compatibility: Central hinge incorporates a standard 1/4"-20 threaded mount for stationary support.
Adjustable Eyecups: Multi-step twist-up eyecups offer 16 mm of eye relief with a ±2.5 dpt diopter adjustment range.

Product Specifications

Magnification: 10x
Objective Lens Diameter: 42 mm
Prism Type: Phase-corrected Schmidt-Pechan (BAK4)
Field of View: 113 m to 114 m at 1,000 m
Exit Pupil: 4.2 mm
Eye Relief: 16 mm
Close Focus Distance: 2.0 metres
Diopter Adjustment: ±2.5 dpt
Chassis Material: Magnesium alloy
Dimensions: 145 mm (Length)
Weight: 670 g to 725 g
Weatherproofing: Nitrogen-filled, waterproof, and fogproof
Tripod Interface: 1/4"-20 standard thread

Who is the GPO Passion ED 10x42 for?

Stalking and raised-hide hunters — need 90% light transmission and a 42 mm objective diameter to resolve game detail during early morning and late dusk transitions without exceeding a manageable 670 g to 725 g carry weight in this roof-prism hunting binocular.
Long-range wildlife and bird observers — require 10x magnification to identify distant subjects across open terrain, backed by a 2.0-metre close focus boundary when tracking nearby fauna.
Shooting range target spotters — utilize the 10x magnification and 113 m field of view at 1,000 m to confirm projectile placement and scan downrange targets without shifting to a heavier spotting rig.

Less suitable for: Specialized deep-night observation or heavy canopy glassing at dawn and dusk, where larger exit-pupil configurations such as 8x56 or 10x56 binoculars, or dedicated night vision units, provide superior low-light gathering; or for extended stationary glassing sessions where hand-held shake at 10x magnification requires mounting via the 1/4"-20 adapter or stepping up to a dedicated tripod-mounted spotting scope.

SKU	GPO40646LP
Model #	B363
Brand	Gpo
Shipping Weight	1.0000kg

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Gpo Passion Ed 10x42 Binoculars B363 Brown 90% Light Transmission

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