DrPhone APL11 Professional Powerful Binoculars with AutoFocus - 10X42 – Fully Multi Coated Lenses - 10x magnification – 42MM Objective Lens - BAK4 - Black
DrPhone APL11 Professional Powerful Binoculars with AutoFocus - 10X42 – Fully Multi Coated Lenses - 10x magnification – 42MM Objective Lens - BAK4 - Black
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Fixed focus autofocus: Fixed focus is easy to use, ideal for viewing fast-moving objects/targets without adjusting the focus. The 10x42 binoculars have the same function as an eagle's eye. Binoculars with fixed focus rely on the flexibility of your eyes to keep the image clear and sharp. The minimum viewing distance must be more than 25 meters. People with myopia should wear glasses that correct their vision.
Note: If you are short-sighted and do not wear glasses, please do not buy this.
Sleek and solid: rubber finish for shock resistance and a firm, comfortable grip.
Multi-coated lenses: Equipped with fully multi-coated lenses for great clarity and sharpness. With unique Color Adjusted Transmission technology, you can see deer and other wildlife clearly and sharply.
Life-like colours: high-quality lens coatings provide an excellent contrast-rich image with outstanding colour reproduction.
High contrast / BAK4 PRISM: The binoculars for night vision in low light with BAK4 prism, 42 MM objective lens and FMC Full Multi-Layer Coating glass lens. 10x magnification, field of view at 1000YD - 304FT. The lens has well-controlled glare and ghosting. It is easy to see objects in the shade, even against backlight or a bright background. For more vivid colours without dark edges. It can be used at night, but not in complete darkness.
Note: The eyes should keep a distance from the eyepieces, not stick to the eyepiece, to prevent the eyes or eyelashes from blocking the line of sight, causing a black shadow in the eyepiece. It helps you see things in low light, it does not help you see things in the dark. Allow for a measurement deviation of 1-5 mm due to manual measurement.
Note 2: If you always get a blurry image, consider the viewing distance. Our autofocus binoculars can only be focused if the viewing distance is more than 20 yards. Consider the viewing distance long enough to focus the binoculars.
Features:
- Auto focus (you do not need to focus this binocular yourself, it happens automatically)
- BAK4 prism
- Ideal for fast-moving objects/targets/actions
- Fully Multi-coated lenses
- 42mm large objective lens
- 10x magnification
Specifications:
- Magnification: 10X
- Lens coating: Multi-Coated
- Focus system: Fixed focus
- Exit pupil distance: 13.6 mm
- Exit pupil diameter: 4.0 mm
- Objective lens diameter: 42 mm
- Eyepiece lens diameter: 15 mm
- Eye cups: Twist-up eye cups
- Lens coating: FMC
- Prism glass: Roof prism
- Prism material: BAK4
- Field angle: 5.8°
- Field of view: 304ft/1000yds (101m/1000m)
- Bracket interface: Tripod adapter (not included)
- Dimensions: 144 mm * 127 mm * 54 mm
F.A.Q:
What do the terms Magnification & Objective diameter actually mean?
Binoculars always have 2 numbers. For example, the numbers 8x40 on binoculars mean that the viewer has a magnification of 8x and an objective diameter of 40 mm, which means that the objects you view are brought 8x closer, and that the objectives (the lenses at the front of the viewer) have a diameter of 40 mm. If the diameter is larger, the binoculars will let in more light, giving you a brighter image. The term objective diameter is also referred to as the effective aperture of the front lens.
Note these are only examples, they do not relate to the product itself.
What is a field of view?
The field of view is the width visible with binoculars at a distance of 1000 meters. This is related to the field angle the viewer provides. The larger the field angle, the larger the field of view. The field of view is calculated by multiplying the field angle by 17.5.
A viewer with a field angle of 9.3 degrees thus has a field of view at 1000m of 9.3x17.5 = 162.7
Note these are only examples, they do not relate to the product itself.
What is a coating?
Coatings prevent reflection and scattering of light. This reduces light loss and provides better contrast. Untreated glass can lose up to 5% of light transmission. Binoculars consist of multiple glass lenses and would lose a lot of light with untreated glass.
A single layer of anti-reflective coating can reduce the loss by about 1.5%. Multiple layers of different coatings can reduce light loss to as low as 0.2%.
A coating is applied to the glass by evaporating the coating. This is done in a protected environment so that no dirt can contaminate the coating. A damaged coating
Note these are only examples, they do not relate to the product itself.
