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Nikon ACTION 8x42 BinocularNikon ACTION 8x42 is a full-size Porro-prism binocular with fixed 8x magnification and 42 mm objective lenses. It is designed for comfortable, bright and stable observation of birds, wildlife, landscapes and sporting events where a wide field of view and easy handheld use are important. The 58.4° apparent field of view helps users locate and follow subjects easily, while the 8x power provides a steady, detailed image that is simple to hold for long periods.The combination of 42 mm objectives and 8x magnification makes this model a practical choice for open terrain, forest edges, mountain landscapes and large outdoor venues. It is especially useful when image brightness, wide coverage and handheld stability are more important than maximum magnification.Key Advantages
8x magnification provides a bright, steady and easy-to-hold image, ideal for extended handheld observation and tracking of moving subjects.
42 mm objective lenses deliver strong light-gathering capacity for bright images in lower light, dawn, dusk and overcast conditions.
58.4° apparent field of view creates a spacious, comfortable view and makes it easy to find and follow birds, animals and athletes.
140 m field of view at 1,000 m covers a very wide area, supporting fast target acquisition and efficient scanning of large open spaces.
5.3 mm exit pupil and 28.1 relative brightness provide a bright image well suited to daytime and moderate low-light observation.
17.3 mm eye relief allows comfortable viewing even for users who wear glasses.
Porro-prism optical system delivers natural depth perception and a three-dimensional impression of the scene.
Multilayer-coated lenses improve light transmission, reduce reflections and enhance contrast for clearer, more detailed images.
Central focusing wheel allows quick and precise focus adjustment for both eyes.
Aluminium-alloy body gives the binocular a rigid, durable structure for regular outdoor use.
Rubber armour improves grip, comfort and protection against bumps and minor impacts during transport and field use.
Tripod compatibility supports stable long-duration observation with an optional Nikon TRA-2 or TRA-3 adapter, sold separately.
Optical PerformanceThe fixed 8x magnification is well suited to observing subjects at medium and long distances while maintaining a very stable handheld image. It provides less magnification than 10x or 12x binoculars, but delivers a brighter picture and much easier tracking of moving birds, animals and athletes. Because lower magnification reduces the visible effect of hand movement, the ACTION 8x42 is one of the most comfortable full-size binoculars for extended use without a tripod.The 58.4° apparent field of view creates a wide, comfortable visual experience and helps the user keep moving subjects within the field. The real field of view is 8°, corresponding to 140 m at a distance of 1,000 m. This is a very wide field for a 42 mm binocular and makes initial subject location and scanning of large areas fast and efficient, especially across lakes, fields and mountain slopes.The 42 mm objectives provide high light transmission. The 5.3 mm exit pupil and relative brightness of 28.1 make the ACTION 8x42 particularly effective in daylight and moderate low-light conditions. Eye relief of 17.3 mm supports comfortable viewing for most users, including those who wear glasses.A closest focusing distance of 5 m means the binocular is optimised for medium- and long-range observation while still allowing relatively close viewing of birds, wildlife and other subjects in parks, gardens and near feeders.Technical Specifications – Nikon ACTION 8x42
Specification
Value
Model
Nikon ACTION 8x42
Binocular type
Full-size, fixed-magnification Porro binocular
Prism system
Porro
Focusing system
Central focus
Magnification
8x
Objective lens diameter
42 mm
Real angular field of view
8°
Apparent angular field of view
58.4°
Field of view at 1,000 m
140 m
Exit pupil
5.3 mm
Relative brightness
28.1
Eye relief
17.3 mm
Closest focusing distance
5.0 m
Interpupillary distance adjustment
56–72 mm
Length
149 mm
Width
193 mm
Depth
59 mm
Weight
790 g
Body material
Aluminium alloy
Exterior protection
Rubber armour
Lens coating
Multilayer coating
Tripod compatibility
Compatible with optional Nikon TRA-2 and TRA-3 adapters
Power source
Not required
The apparent angular field of view is calculated according to the ISO 14132-1:2015 standard. Exit pupil is derived from the optical formula (42 mm ÷ 8x = 5.25 mm ≈ 5.3 mm) and relative brightness from (5.3² ≈ 28.1).ApplicationsBirdwatching and Nature ObservationThe 8x magnification and wide apparent field make the Nikon ACTION 8x42 effective for observing waterfowl, raptors and other birds across lakes, coastal areas, fields and wetlands. The large objectives and bright image help in variable light, while the wide field assists with locating and following birds in flight.For general nature observation, the binocular provides a bright, comfortable view of mountain peaks, valleys, coastlines and distant landmarks. The 42 mm objectives are especially useful in mountainous terrain, forest edges and open landscapes where subjects are often far away and light conditions change.Wildlife and Hunting ObservationThe binocular is suitable for scanning meadows, forest clearings and distant slopes for wildlife. The 8x power supports easy tracking of animals at long range, while the wide field helps maintain situational awareness.For extended stationary observation from a hide, vehicle or fixed position, the binocular can be mounted on a tripod using an optional Nikon TRA-2 or TRA-3 adapter.Sporting EventsAt stadiums, racetracks and outdoor venues, the 8x magnification and wide field allow the user to follow distant action and examine specific sections of the field with a stable, bright image. Fixed magnification simplifies operation, requiring only focus adjustment during fast-moving sequences.Hiking and TravelAt 790 g, the Nikon ACTION 8x42 is not a compact pocket model, but it is a practical full-size binocular for day hikes, camping, observation from scenic viewpoints and travel where optical performance is more important than minimum size. The 8x magnification is useful for viewing mountain peaks, coastlines, distant architecture and landscape features with a steady handheld image.Users who prioritise minimum weight may prefer compact binoculars, while the ACTION 8x42 offers larger objective lenses, a very wide field of view, excellent brightness and the natural depth perception associated with Porro optics. If you need reliable bright, wide-field optics with comfortable 8x magnification, you can buy or order the Nikon ACTION 8x42 from Professional Optics with delivery from Split, Croatia, across the European Union.Construction and ErgonomicsThe Nikon ACTION 8x42 uses a classic Porro-prism layout with widely spaced objective lenses. This design contributes to a natural sense of depth and spatial relationships between objects at different distances.The aluminium-alloy body provides structural rigidity, while the rubber-armoured exterior improves grip and protects against knocks and minor impacts. The shape is designed for comfortable two-handed holding over extended periods.Focusing is performed with a central wheel located between the two barrels. Once the dioptre has been adjusted for the difference between the user’s eyes, normal focusing requires only the central wheel.Waterproof construction and nitrogen filling are not specified for this model. The binocular should not be submerged or exposed to prolonged heavy rain.Frequently Asked QuestionsWhat is the main advantage of the Nikon ACTION 8x42?The main advantage is the combination of 8x magnification, 42 mm objectives and a very wide field of view. This configuration provides a bright, stable and easy-to-hold image, ideal for extended handheld observation and tracking of moving subjects in open terrain.Is the Nikon ACTION 8x42 suitable for birdwatching?Yes. The 8x magnification and wide field make it effective for observing birds across lakes, fields and coastal areas, especially when subjects are moving quickly or light is limited. The 42 mm objectives and high relative brightness help maintain a bright image in changing light, which is useful during early morning and late afternoon birding.Can the Nikon ACTION 8x42 be used on a tripod?Yes. The binocular is compatible with optional Nikon TRA-2 and TRA-3 tripod adapters, which allow stable mounting for extended observation. The adapters are sold separately and are not included with the binocular.Is the Nikon ACTION 8x42 waterproof?Waterproof construction and nitrogen filling are not specified for this model. It should be protected from heavy rain and must not be submerged in water.
Who should buy the Nikon ACTION 8x42?This model is recommended for users who want a full-size binocular with bright optics, a wide field of view and comfortable 8x magnification. It is suitable for birdwatching, hiking, wildlife observation, sports and general outdoor use where image brightness and stability are priorities. If you need reliable bright, wide-field optics with comfortable 8x magnification, you can buy or order the Nikon ACTION 8x42 from Professional Optics with delivery from Split, Croatia, across the European Union...
