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KW82K-8x42/10x42 Straight tube waterproof binoculars
KW82K-8x42/10x42
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product description:
The regular brand high-quality telescopes are selected with optical glass that has undergone strict testing. They are crafted using precise optical processing techniques, resulting in excellent imaging performance. They are an excellent choice for outdoor travel observation. The quality of telescopes on the market varies greatly. Some low-priced products have relatively limited optical materials and assembly and debugging standards. We suggest that consumers make more careful selection and comprehensive consideration of the product materials, craftsmanship and quality when purchasing. They should consume rationally to protect their own legal rights and interests.
Technical Parameters:
| POWER | 8x | 10x | |
| OBJ.LENS DIA. | mm | φ42mm | |
| TYPE OF PRISM | Type / Material | BaK4 | |
| NUMBER OF LENS | Pieces & Groups | 8 pieces 6 groups | |
| LENS COATING | CL/FC/BMC/FBMC | FMC/Object lens&eyepiece is FBMC | |
| FOCUS SYSTEM | Cent. / Ind. / Fix | Cent. | |
| FOCUSING LENS | Eye. / Obj. / Int. | Int. | |
| EXIT PUPIL DIAMETER | mm | φ5.2 | φ4 |
| EXIT PUPIL DIST. | mm | 17.2 | 15.2 |
| FIELD OF VIEW | ANGLE | 6.3° | 5.8° |
| Ft/1,000Yds | 331ft | 305ft | |
| M/1,000M | 110m | 102m | |
| MIN. FOCAL LENGTH | M / Ft. | 2m | 2m |
| RELATIVE BRIGHTNESS | 27.04 | 18.23 | |
| TWILIGHT INDEX | 18.3 | 20.4 | |
| DIOPTER SYSTEM | Right Eyepiece | ||
| DIOPTER COMP. | + - Optic.Degree | ±5 | |
| INTERPUPILLARY DIST. | mm | 56mm~74mm | |
| NITROGEN FILLED | Yes / No | NO | |
| HANDWHEEL AND DECORATIVE RING MATERIAL | Metal/plastic | Plastic | |
| EYECUPS SYSTEM | Rubber/Pop-up/Twist-up | Twist-up | |
| POUCH | Yes / No - Mat'l. | yes | |
| STRAP | Yes / No - Mat'l. | yes | |
| CLEANING CLOTH | Yes / No | yes | |
| SILICA GEL | Yes / No | yes | |