A good telescope of a high-quality brand uses strictly inspected optical glass and high-level optical processing. It is an excellent choice to enjoy the outdoors. And some small manufacturers use some substandard optical glass, or even ordinary glass or resin lenses to assemble, the products have not been strictly debugged, they are fake and inferior products, attracting customers with low prices, so that customers be violated.

MODELS                      52-0842  52-1042

       SPEC.                                 

01    POWER  8X   10X

02    OBJ. LENS DIA. mm      42mm     42mm

03    TYPE OF PRISM     Type / Material      ★Roof / BaK4       ★Roof / BaK4

04    PRISM COATING   Yes / No        Yes  Yes

05    NUMBER OF LENS        Pieces & Groups   16 Pcs / 6 Groups 16 Pcs / 6 Groups

06    LENS COATING     Part / Full / Multi   Multi       Multi

07    FOCUS SYSTEM     Cent. / Ind. / Fix    ★Cent.   ★Cent.

08    FOCUSING LENS   Eye. / Obj. / Int.     Int.   Int.

09    EXIT PUPIL DIAMETER  mm        5.2 mm   4.2 mm

10    EXIT PUPIL DIST.    mm        17.9 mm 15.1 mm

11    FIELD OF VIEW      Angel     7.0°  5.6°

12                  Ft / 1,000Yds         367Ft / 1000Yds    293Ft / 1000Yds

13                  M / 1,000M           122M / 1000M      98M / 1000M

14    CLOSE FOCUS DISTANCE    M / Ft.    米/尺      ★2M / 6.56Ft ★2M / 6.56Ft

15    RELATIVE BRIGHTNESS               27.04      17.64

16    TWILIGHT INDEX          18.33      20.49

18    DIOPTER SYSTEM         ★Right Ocular      ★Right Ocular

19    DIOPTER COMP.    ± Optic Degree          ± 4 DIOPTER  ± 6 DIOPTER

20    INTERPUPILLARY DIST  mm        56mm to 76mm    56mm to 76mm

21    ZOOM SYSTEM     Type & Location           No   No

22    WEATHER PROOF        Yes / No        Yes  Yes

23    WATER PROOF     Depth / Time        Yes  Yes

24    NITROGEN FILLED        Yes / No        Yes  Yes

25    FOLDING EYECUPS      Yes / No        No   No

26    POUCH  Yes / No-Mat'l.     Yes / Nylon    Yes / Nylon

27    STRAP    Yes / No-Mat'l.     Yes / Nylon    Yes / Nylon

28    CLEANING CLOTH        Yes / No        Yes  Yes

29    SILICA GEL     Yes / No        Yes  Yes

30    UNIT DIMENSION mm        128X52X124   128X52X124

31    UNIT WEIGHT        gm / oz.         585 g      580 g