ID
1307261
$ 136.72
1-2 weeks delivery time
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Sea NAV 7x50 Marine Binoculars (Lalizas 31317, IMPA 370342): magnification 7×, objective Ø50 mm, BAK-4 Porro prisms, center focus and autofocus support for stable marine observation. FOV 114 m@1000 m (6.6°), exit pupil 7.14 mm, eye relief 20 mm, weight 873–873 g (0.873 kg), body size 19×6.5×17.5 cm. Rubber armored housing, fold-down eyecups. Kit: strap, soft bag, cleaning cloth, desiccant, lens cloth.
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Sea NAV 7x50 Marine Autofocus Binoculars – Lalizas 31317, BAK-4, 114 m FOV@1000 m, Compass-Free Version (IMPA 370342)
Product Overview
The Sea NAV 7x50 marine binoculars (manufactured by Lalizas, model 31317, IMPA 370342) are optimized for bright, stable long-range observation on water. The optical system is based on Porro BAK-4 prisms, delivering high-contrast geometry and improved edge clarity. The combination of center focus and autofocus assistance maintains clear imaging from medium range to infinity, enabling rapid target acquisition without constant refocusing. The binoculars feature a rubber-armored, shock-resistant housing for secure grip in marine spray and humidity conditions.
Key Features
- Magnification: 7×
- Objective lens: 50 mm (Ø50)
- Prism type: Porro BAK-4
- Angle of vision: 6.6°
- Field of view: 114 m @ 1000 m
- Exit pupil: 7.14 mm (7.14)
- Eye relief: 20 mm
- Focus system: Center focus + diopter on eyepiece
- Autofocus assistance: clear from mid-range to infinity
- Eyecups: rubber fold-down (comfortable for rough sea vibration)
- Housing: rubber armored, shock-resistant, non-slip
- Net weight: 873 g (0.873 kg)
- Shipping weight: 1.2 kg
- Supplied with strap, soft bag, lens cleaning cloth, desiccant
Technical Specifications
Parameter Value Brand / Model Lalizas 31317 IMPA Code 370342 Magnification 7× Objective Lens Ø 50 mm Prisms Porro BAK-4 Angle of Vision 6.6° Exit Pupil 7.14 mm Eye Relief 20 mm Focus Center focus + ocular diopter, autofocus assistance Field of View @1000 m 114 m Housing Protection Rubber armored, shock-resistant, non-slip Net Weight 873 g Shipping Weight 1.2 kg Body Dimensions 6.5 × 19 × 17.5 cm Accessories Soft bag, neck strap, lens cleaning cloth, lens cloth, desiccant
Applications
- Horizon and vessel tracking
- Buoy, coastal and landmark identification
- Offshore observation in bright/glare conditions
- Daytime marine scanning requiring rapid magnification stability
Package Contents
- 1 × Sea NAV 7x50 Marine Binoculars (IMPA 370342)
- 1 × Neck strap
- 1 × Soft protective bag
- 1 × Lens cleaning cloth
- 1 × Lens cloth / cleaning wipe
- 1 × Desiccant (anti-humidity)
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