7x Magnification 21x40mm Zoom Lens Binoculars BK 7 Reverse Porro Prisms
Brand Name:Kinglux optics
Model Number:BMZ1125 -7-21x40
Minimum Order Quantity:1000 pcs
Delivery Time:60
Payment Terms:L/C, T/T, Western Union
Place of Origin:China
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Location:
Hong kong Hong kong China
Address:
Rm 9,8/F,Goldfield Ind Centre, No.1 Sui Wo Road,Fo Tan,N.T.Hong Kong
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within 34 hours
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7x Magnification 21x40mm Zoom Lens Binoculars BK 7 Reverse Porro Prisms
7-21x40mm Zoom Lens Binoculars BK-7 Reverse Porro Prisms Reverse 7-21x Zoom Magnification 40mm Objective
The 7-21x40mm Reverse Porro Zoom Binocular from is a compact binocular engineered to perform under conditions requiring lightweight portability and carrying comfort. The binocular features BK-7 roof prisms and fully coated optics thereby maximizing light transmission and making bright images available to the viewer. The zoom lever allows you to seamlessly transition through the magnification range from 7x for quickly scanning large open areas, all the way to 21x to get a closer more detailed look at your object of interest. They possess a compact folding dual-hinge bridge design with a centered focus knob. Ergonomic and shock absorbing rubber armoring with a firm grip serve up a secure and comfortable hold with added shock-resistance.
Features:
7-21x Zoom Magnification
40mm Large Objective lens
Fold down eye cups
Center Focus Knob
Reverse Porro Prism
Includes Lens Covers, Neck Strap and Soft Carrying Case
Limited LifeTime Warranty
Objective lens Coating:Red ,Blue,Green Fully Multi-Coated
Specification:
| Model | BMZ1125 | |||
| Specification | 7-21x40mm | 8-24x 50mm | 10-30x50mm | 10-30x60mm |
| Magnification | 7x - 21x | 8x - 24x | 10x | 10x |
| Obj.lens (mm) | 40 | 50 | 50 | 60 |
| Eyepiece diameter(mm) | 15 | 15 | 15 | 15 |
| Field Angle | 5.2°- 2.9° | 4.5° - 2.5° | 3.5° - 1.9° | 3.5° - 2.0° |
| Field of View @ 1000m | 90m - 50m | 78 m - 43 m | 62m - 33m | 62m - 33m |
| Field of View @ 1000yds | 270ft - 150ft | 234 ft - 129 ft | 186ft - 99ft | 186ft - 99ft |
| Apparent Field of View | 36° - 61° | 35° - 60° | 35° - 57° | 35° - 57° |
| Exit pupil (mm) | 5.7 - 1.9 | 6.2 - 2.0 | 5.0 - 1.6 | 6.0 - 2.0 |
| Eye relief (mm) | 14 - 12 mm | 14.5 - 12.5 mm | 14.5 - 12.5 mm | 14 - 12 mm |
| Diopter Adjustment | ± 5 | ±5 | ± 5 | ± 5 |
| Dusk Index | 16.7 - 29 | 20 - 34.64 | 22 - 38.7 | 24.5 - 42.4 |
| Relative Brightness | 32.5 - 3.6 | 38.44 - 4 | 25 - 2.56 | 36 -4 |
| Prism System | Reverse Porro | |||
| Prism Glass | Bk7 | |||
| Focus System | Center | |||
| Lens Coating | Fully Multi-Coated | |||
| Eyecups | Fold-Down | |||
| Tripod Adaptable | Yes Dedicated adapter (Special tripod adapter) | |||
| Color | Custom color | |||
| Size (mm) | 141X71X158 | 148X72X183 | 148X72X183 | 163X76X233 |
| Weight (g) | 694 | 907 | 907 | 1055 |
| F.A.Q. | ||||
| Q:1.Can you produce the products with our brand? | ||||
| A: We offer logo laser engraved silk-screen printing or sticker trade make on product, | ||||
| and customized package is also available. Specific details can be discussed. | ||||
| Q: 2.How how can I pay the order? | ||||
| A: Payment terms are available by Paypal, T/T or Weston Union. Specific details can be discussed. | ||||
| Q: 3. How do you control the quality? | ||||
| A: BCI - we have quality control proecess, from procurement, production, packing to shipment all | ||||
| process are under strict control and are fully traceable. |
From finding the trail less traveled to perfecting your shot — you belong outdoors. we develop optics gear to empower you to get out and experience your passion, because we love the outdoors as much as you.BCI GROUP LTD.. NEVER MISS
7x Magnification 21x40mm Zoom Lens Binoculars BK 7 Reverse Porro Prisms
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