20-60x80 Birding binocular price,Birding binocular review 2016

20-60x80 Spotting scope Performance characteristic:

20-60x80 Spotting scope has clear image and aluminum trunk.20-60x80 Spotting scope is easy to carry, ideal for outdoor uses.20-60x80 Spotting scope is appliable to various fields including game watching,wildlife observation,hiking,scenery watching,shooting practice and so on. 

POWER

20x

60x

OBJ.LENS DIA.

mm

80mm

TYPE OF PRISM

Type / Material

Porro/BK7

PRISM COATING

Yes / No

No

NUMBER OF LENS

Pieces & Groups

7pieces4groups

LENS COATING

CL/FC/BMC/FBMC

BMC

FOCUS SYSTEM

Cent. / Ind. / Fix

Cent.

FOCUSING LENS

Eye. / Obj. / Int.

Int.

EXIT PUPIL DIAMETER

mm

4

1.33

EXIT PUPIL DIST.

mm

18

15

FIELD OF VIEW

ANGLE

1.8°

1.0°

Ft / 1,000Yds

94.2 ft

52.5ft

M / 1,000M

31.4m

17.5m

MIN.FOCAL LENGTH

M / Ft.

6m/18ft

RELATIVE BRIGHTNESS

16

1.77

TWLIGHT INDEX

40

69.3

RESOLUTION

≤2.8"

DIOPTER COMP.

±Optic.Degree

INTERPUPILLARY DIST.

mm

WEATHER PROOF

Yes / No

Yes

WATER PROOF

Depth / Time

1.5m/3min

NITROGEN FILLED

Yes / No

Yes

EYECUPS SYSTEM

Rubber / Pop-up / Twist-up

Twist-up

POUCH

Yes / No-Mat'l.

Yes

STRAP

Yes / No-Mat'l.

No

CLEANING CLOTH

Yes / No

Yes

SILICA GEL

Yes / No

Yes

UNIT DIAMENSION

mm

430x90x165

UNIT WEIGHT

gm / oz.

1,230g

GIFT BOX SIZE

mm

450x115x170mm

PIECES PER SHIPPING CARTON

Pieces

6pcs/ctn

SHIPPING CARTON SIZE

Size

46.5x38x37.5cm