How do the GPO Passion 8x42 SD binoculars perform during early morning and late evening low-light conditions?

The Passion 8x42 SD binoculars feature a generous 5.25 mm exit pupil and proprietary GPObright full multi-coatings that deliver 88% light transmission. This optical design provides clear, bright viewing during dawn, dusk, and heavily overcast canopy conditions, making them well-suited for twilight wildlife observation.

Are these binoculars suitable for long-range open plains glassing past 500 meters?

With an 8x magnification and a 366 ft at 1,000 yd field of view, these binoculars are optimized for short-to-intermediate observational ranges and stable handheld scouting. For spotting game or fine-detail identification past 400 to 500 meters across wide open plains, a 10x magnification model or a dedicated spotting scope like the GPO Passion Apo 16-48x65 is recommended.

Can I mount the GPO Passion 8x42 SD binoculars onto a tripod for extended viewing sessions?

Yes, these binoculars feature a standard 1/4"-20 threaded tripod adapter socket conveniently located under the front hinge cap. This allows you to mount them securely for steady, fatigue-free glassing during prolonged observation periods.

Do the GPO Passion 8x42 SD binoculars require any electrical safety certifications or battery compliance for use in Australia?

No, the GPO Passion 8x42 SD is an entirely manual, passive optical device that contains no internal electronics and requires no batteries. Consequently, electrical regulations such as 240V mains compatibility and SAA/RCM certifications are not applicable to this product.

What accessories pair well with the GPO Passion 8x42 SD for full-day field carry in the Australian bush?

Weighing approximately 660 g, these binoculars pair exceptionally well with the GPO Bino Harness Pro for comfortable, secure, and hands-free multi-day carry across bushwalking trails and hunting expeditions.

8x42 Binoculars - GPO B240 Passion SD

The GPO PASSION™ SD 8x42 Binoculars (Model B240) are roof-prism wildlife optics engineered for handheld observation, hunting, and birdwatching. Built with Substantial Definition (SD) glass and proprietary GPObright™ full multi-coatings, the optical system delivers 88% daylight transmission and natural colour fidelity. The Schmidt-Pechan roof prism assembly utilizes dielectric-coated BaK-4 glass housed inside a lightweight, rubber-armoured magnesium alloy chassis. Nitrogen purging and O-ring sealing ensure complete waterproof and fogproof performance in wet field environments, while a 5.25 mm exit pupil provides functional clarity during dawn, dusk, and overcast canopy conditions.

Key Features

Substantial Definition (SD) Optical System: Features GPObright™ multi-coated lenses paired with dielectric-coated BaK-4 roof prisms for 88% light transmission.
Rugged Magnesium Chassis: Durable, lightweight magnesium alloy body wrapped in protective rubber armour for impact resistance.
Weatherproof Construction: Fully nitrogen-purged and sealed against internal fogging and moisture ingress.
Ergonomic Viewing: Twist-up eyecups deliver 17.0 mm to 17.3 mm of eye relief for comfortable use with or without eyeglasses.
Tripod Adaptability: Includes a standard 1/4"-20 threaded socket beneath the front hinge cap for stable, stationary mounting.

Product Specifications

Magnification: 8x
Objective Lens Diameter: 42 mm
Field of View: 366 ft at 1,000 yd (approx. 122 m at 1,000 m; 7.0° angular FOV)
Exit Pupil: 5.25 mm
Eye Relief: 17.0 mm to 17.3 mm
Close Focus Distance: 9.8 ft to 9.9 ft (approx. 3.0 m)
Interpupillary Distance (IPD): 56 mm – 78 mm
Light Transmission: 88%
Dimensions: 5.7 in (146 mm) L × 5.3 in (135 mm) W
Weight: 23.3 oz to 24.0 oz (approx. 660 g)
Prism Type: Schmidt-Pechan BaK-4 (Dielectric coated)

Who is the GPO PASSION SD 8x42 for?

Mid-range deer and game hunters — Delivers steady, shake-free handheld glassing via 8x magnification and a 5.25 mm exit pupil that maintains target visibility in low-light canopy environments.
Birdwatchers and wildlife scouts — Provides a wide 366 ft at 1,000 yd field of view and a 9.8 ft close focus distance to track moving fauna across dense bushwalking trails.
Mobile outdoor observers — Offers full-day carry comfort across rugged terrain with a manageable 23.3 oz to 24.0 oz magnesium chassis that balances portability with a generous 42 mm objective lens diameter.

Less suitable for: Long-range open plains glassing or fine-detail target identification past 400 to 500 meters, where a higher-magnification 10x42 optic, 12x50 binocular, or dedicated spotting scope is better suited.

SKU	GPO40626LP
Model #	B240
Brand	Gpo
Shipping Weight	1.0000kg

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Gpo Passion B240 Sd 8x42 Binoculars Magnesium Chassis

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