How do the Sightron SV Series 8x42 SWA binoculars perform in low-light conditions like dawn and dusk in the Australian bush?

These binoculars feature a generous 5.3 mm exit pupil paired with high-grade ED glass and multi-coated optics, making them exceptional for gathering light during dawn, dusk, and shadowed woodland conditions. The wide-angle design allows you to quickly scan dark treelines and gullies for game without losing brightness or contrast.

Are these binoculars heavy to carry during an all-day mobile hunting trip?

At 31.6 oz (approx. 896 g), the magnesium die-cast housing and heavy-duty optical components make this model slightly heavier than standard 8x42 binoculars. While built for rugged durability, extended mobile hunts in the outback benefit significantly from using a four-point chest harness rather than the included neck strap to distribute weight and prevent fatigue.

Do these binoculars require any electrical certification or SAA/RCM approval for use in Australia?

No. The Sightron SV Series 8x42 ED SWA binoculars are a purely non-electronic, analog optical device requiring no batteries, charging circuits, or power adapters. Consequently, Australian 240V compatibility, SAA approval, and RCM regulatory labeling do not apply.

ED Binoculars - Sightron SI-27013

The Sightron SV Series 8x42 ED SWA Binoculars (Model: 27013 / SI-27013) are a passive roof-prism optical scanning tool built for high-detail observation across Australian terrain. Combining 8x magnification with a 42 mm objective diameter, these binoculars deliver a super wide-angle linear field of view measuring 477 ft at 1,000 yards (exceeding a 70° apparent field of view). To maintain edge-to-edge clarity across this wide image, the optical assembly integrates Extra-low Dispersion (ED) glass with a dedicated field flattener lens system and phase-corrected Schmidt-Pechan roof prisms (H-BAK7GT material). The housing is die-cast from magnesium alloy and wrapped in protective rubber armour, sealed completely against moisture and nitrogen gas purged to eliminate internal fogging during temperature swings.

Key Features

Super Wide-Angle Optical System: Delivers a 477 ft at 1,000 yards field of view with an apparent FOV exceeding 70°, utilizing field flattener lenses to eliminate edge distortion.
ED Glass Elements: Features Extra-low Dispersion objective lenses paired with phase-correction coatings on Schmidt-Pechan roof prisms to maximize light transmission and contrast.
Low-Light Visibility: Provides a 5.3 mm exit pupil and 18 mm eye relief, supporting sustained viewing in dawn, dusk, and heavily shadowed bushland.
Ruggedised Chassis: Built with a green rubber-armoured magnesium die-cast housing that offers waterproof and nitrogen-purged fogproof protection.
Precision Mechanics: Controlled via a large metal center focus wheel with a 2.0 m close focus limit, an interpupillary range of 56 mm to 76 mm, and a -4 to +4 diopter adjustment.

Specifications

Magnification: 8x
Objective Lens Diameter: 42 mm
Prism Type: Schmidt-Pechan roof prism (H-BAK7GT glass) with phase-correction coating
Linear Field of View: 477 ft at 1,000 yards
Apparent Field of View: >70°
Eye Relief: 18 mm
Exit Pupil: 5.3 mm
Minimum Focus Distance: 2.0 m (approx. 6.6 ft)
Diopter Adjustment Range: -4 to +4 dpt
Interpupillary Distance: 56 mm to 76 mm
Chassis Material: Die-cast magnesium alloy with elastomer/rubber armour
Environmental Rating: Fully waterproof and nitrogen gas purged
Dimensions: 6.4 in (H) x 4.8 in (W) x 2.6 in (L) (162.5 mm x 121.9 mm x 66 mm)
Weight: 31.6 oz (approx. 896 g)

Who is the Sightron SV Series 8x42 ED SWA Binoculars for?

Australian bush hunters — scanning wide valleys and thick woodland benefit from this roof-prism hunting binocular's linear field of view of 477 ft at 1,000 yards, which facilitates rapid target acquisition across brush without losing situational awareness.
Wildlife observers — requiring edge-to-edge optical clarity rely on the combination of 8x magnification, ED glass, and integrated field flattener lenses in these binoculars to resolve fine plumage and animal features across an apparent field of view exceeding 70°.

Less suitable for: Extreme long-range identification past standard hunting distances where higher-magnification optics or dedicated spotting scopes are better suited, or extended mobile hunts where carrying a 31.6 oz optical chassis on a standard neck strap induces fatigue compared to using a four-point chest harness or a lighter compact binocular.

SKU	SIT42343LP
Model #	SI-27013
Brand	Sightron
Shipping Weight	1.0000kg

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Sightron Sv Si-27013 Binoculars 8x42 Ed Glass Swa

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