Item

Desc.

Brand:

LIGINN

Model No.:

L-18X

Lens Style:

18x telescope

Compatible:

Compatible with 98% smart-phone&tablets

Color:

Black, White

AR Coating:

German Lebao full-wave wide band AR film

Transmittance

99.5%

Focus range

10 20 30 40-∞

Angle:

120 degree

Magnification:

18x

Material:

AG glass + aluminium-lithium alloy

Lens Construction:

4 elements 3 groups

Focal Length:

16MM

Mount:

M17*P1.0

Coating layers:

Double-sided 9 layers coated

Weight:

225g

Lens size:

Package size:

34mm*19mm

128mm*66mm*46mm

Tolerances:

0.01MM

Screw thread durability:

Over 2000 times fatigue test  

Quality test:

1.  Refined test

2. Through high temperature test

3. Thermal cycling test

4. Thermal shock test

5. Vibration Test  

6. Drop Test  

7. White balance test                

8. Flare test

9. Ghost test

10. AE(exposure) test

11. Distortion test

12. Viewing angle test

Lens test:

1. Newton ring (mount sharp) test

2. Eccentric test

3. Central thickness test

Package Content:

1*18x telescope lens

1*clip

2*lens cover  

1*cleaning cloth

1*pouch

1*manual