Monoculars 16x52 high power with BAK4 roof prism and green film coating, 66m wide field of view, 1.5m close focus, waterproof and anti-fog design, black colour, for day and night observation
16x52 High Power Monocular with BAK4 Prism and Wide Field of View

Designed for enthusiasts who require a capable and portable optical instrument, this 16x52 monocular combines significant magnification with a large objective lens to deliver a clear viewing experience. Its specifications, including a BAK4 roof prism and specialised green film coating, are selected to provide a bright, sharp image suitable for a range of outdoor activities. Whether you're observing wildlife, monitoring a distant sporting event, or simply enjoying panoramic landscapes, this instrument offers the detail and reliability needed for extended use. The inclusion of features like waterproofing and a wide field of view further enhances its practicality for use in the British outdoors, where conditions can change rapidly.
Features and Construction

The monocular's performance is grounded in its measurable optical specifications and material choices. Each component, from the prism type to the lens coatings, contributes to the overall viewing quality and user experience.
Material and Build
At the core of the optical system is a BAK4 roof prism. BAK4 is a type of barium crown glass known in optics for its high refractive index. In practical terms, this material helps to minimise internal light loss and reduce optical aberrations, resulting in an image that is generally brighter and sharper towards the edges of the view compared to instruments using standard BK7 glass. The lenses are treated with a high-definition green film coating. This multi-layer coating is applied to reduce surface reflections, which increases light transmission through the lenses. The benefit for the user is improved image contrast and colour fidelity, which is particularly useful in low-light conditions or when observing subtle details.
Size and Practical Fit
The monocular has compact dimensions of 145mm in length and 52mm in diameter at the objective lens end. This size makes it easily portable in a coat pocket or small bag. With a net weight of 290g, it is light enough for prolonged handheld use without causing significant fatigue. The 52mm objective lens size is a key factor in its light-gathering capability; a larger objective lens captures more light, which is essential for maintaining image brightness, especially at higher magnifications or during dusk and dawn observation sessions.
Uses and Placement

This monocular's combination of power, light gathering, and robust features defines its ideal applications. It bridges the gap between casual observation and more dedicated viewing pursuits.
Event or Professional Use
The 16x magnification makes this monocular suitable for scenarios where detail at a distance is important. It can be used for surveillance, inspecting distant structures, or following action at sporting events like football matches or horse races from the stands. The wide field of view of 66 metres at a distance of 8000 metres (approximately 4.5 degrees) helps in tracking moving subjects, such as birds in flight or athletes on a field, more comfortably than with a narrower view. The close focal distance of 1.5 metres also allows for viewing objects that are relatively near, adding to its versatility.
Everyday Home Use
For general outdoor activities, this monocular serves as a capable tool for nature enthusiasts. It is well-suited for birdwatching in gardens or local parks, where its power can reveal plumage details. Hikers and travellers can use it to scout ahead on trails or to get a better view of landmarks and scenery. The stated 'day and night available' performance suggests the optics are capable in lower light, making it useful for astronomy beginners to view the moon or brighter planets, though very dim deep-sky objects will require a larger telescope.
Benefits and Buying Value

The value of this optical instrument lies in its specific combination of features that address common needs for durability and consistent performance in an accessible package.
Reuse and Low Maintenance
The waterproof and anti-fog design is a key practical benefit. It means the monocular can be used in light rain, mist, or high humidity without immediate concern for internal damage or lens fogging that would obscure the view. This extends its usable life and reduces the need for meticulous sheltering during outdoor use. It is important to note the specification clarifies it is 'waterproof life (does not support diving)', indicating it is resistant to splashes and rain but not submersion. The sturdy construction, implied by the specified materials and sealed design, supports repeated use over time with basic care.
Why Choose This Product
When selecting a monocular, users often compare specifications to find the right balance of power, clarity, and portability. This model offers a clear combination: high 16x magnification paired with a large 52mm lens for light, a quality BAK4 prism for image quality, and practical weather resistance. The green film coating is a tangible feature that contributes to optical performance. For a buyer seeking a single, versatile instrument for various outdoor observations without the bulk of binoculars, this monocular presents a focused set of capabilities backed by its stated specifications.
