Reviews Field Of View

Vivitar Binoculars with UV Coated Optics

Porro prism design allows greater depth of field than roof prism designs.
Multi-layer anti-reflective lens coating reduces glare and improves clarity.
Apparent viewing angle of 56 Degree allows an immersive view of the field of view.
Fold-down rubber eyecups and 11mm eye relief allow comfortable viewing distance while wearing eyeglasses.

What you will get: there are 2 pieces bike mirrors with a black fabric cloth sack in the package, they can provide wide field of view when you are riding, bringing more convenience to you in daily life.
Rearview mirror for safety: the bike mirror is made of quality acrylic, ABS and PVC material, which are waterproof and dustproof, sturdy and durable, it can improve stability when driving on bumpy roads.
And the convex bicycle mirror provides a wide field of view, makeing the field of vision clearer, increasing safety when cycling.
Adjustable and flexible angle: based on 360 degrees full rotation, the bicycle rear view mirror can be adjusted to any direction you need, helping you watch every direction of your back conveniently.
The mirror can be adjusted in 180 degree to get a better traffic view to keep you safe when biking.
Simple to operate: designed with adjustable rubber buckle strap, the mountain bike mirrors are suitable for the handlebar of diameter 15-35 mm, and no other tools required, you just need to snap on mounting with the rubber strap.
Scope of application: the rear view mirror is suitable for most bicycles, such as mountain bikes, road bikes, MTB, ordinary bikes, electric scooter, E-bike and other types of bicycles, it is also fit for bic....

magnification (twice) :4 object lens Effective diameter (mm) : 10 real-field-of-view (degree) : 10.0 appearance field-of-view (degree) : 38.6 (40.0)....

Nikon's field flattener lens system works in conjunctions with MONARCH HG's wide field of view to provide a sharp, clear view to the lens periphery.
Nikon engineered the optical system of MONARCH HG around its ED (Extra-low Dispersion) glass.
Locking diopter control maintains your personal setting until you want to change it.

Nikon's field flattener lens system works in conjunctions with MONARCH HG's wide field of view to provide a sharp, clear view to the lens periphery.
Nikon engineered the optical system of MONARCH HG around its ED (Extra-low Dispersion) glass.
Locking diopter control maintains your personal setting until you want to change it.

[STRONG SUCTION] Upgraded large suction cup rear view mirror with a diameter of 2.7 inch made of high-quality TPU which not easy to fall off waterproof and durable..
[WIDE FIELD OF VIEW] 360-degree rotation rear view mirror adjusts the angle greatly up and down to expand the field of view..
[ANTI-GLARE] Rear view mirror using glass fiber composite material, anti-glare image is clear, reducing glare damage and driving hazards to ensure safety during driving..
[EASY TO INSTALL] Press-button suction cup is locked for easy operation and the vacuum state of the suction cup is firmer which rear view mirror not easy to fall.Fathers day gifts ..
[APPLICATION] Suction cup rearview mirror are fixed on the windshield or wherever you like, usually suitable for cars, trucks and off-road vehicles..

Adjustment knobs : 5 brightness scope levels for both 2 colors red/green ,which can fit for all light condition,unaffected by extreme weather conditions.Finger adjustable rheostat enables user-controlled brightness of the red/green dot..
Wide field of view: Red scopes with 30mm reflex lens aperture provides a wide field of view of (19m at 100m),suitable for aim and instant lock on target and rapid moving things. Unlimited field of view offers target scanning over the total field of engagement..
Fully Multi-Coated: Multi-coated optics with anti-reflective coating reduces light loss and glare due to reflection offering a brighter, higher-contrast image..
Changeable rail mount: Detachable weaver or picatinny rail mount has 11mm and 20mm. Two modes to attach and precision windage and elevation adjustments feature quick release mount..
Durability and lightweight: Made of aluminum alloy. Dust proof, shock proof and fog proof.Right for handguns, rimfire rifles, shotguns, pistols, black powders and crossbows..

【CVBS/AHD 2 Mode Switching】- The reversing camera has CVBS and AHD signal mode switching. Different from the ordinary reversing camera, its....
【Ultra-clear Night Vision】- Night vision up to 15 meters, using superb lens and sensor chip, wide-angle high light transmission lens, high....
【100% Waterproof】 - 100% IP68 waterproof, will not stop working due to water intake, the shell is sealed with a balanced alloy shell and....
【170° Wide Angle Field of View】- The high-definition 170-degree wide field of view provides a wide field of view for reversing, and the car....
【Widely Applicable】- Reversing camera with parking guide reversing, suitable for most wince and Android system car stereo, suitable for....