Manual Lensmeter JD-4 Extenal Reading

Features:

 1. Wide field observation range
 2. Classic manual lensmeter - Dial Reading Type
 3. ±25 Dpt measurement range
 
Specifications:
  
Range of measurement: -25Dpt ~ +25Dpt
Increments:  ±5D~ ±5D:0.125D;  ±5Dpt ~ ±25Dpt: 0.25D.
Axis of cyl lens:  0 ~ 180° Minimum scale value 1°
 
Prism degree:
Model A (None Prism compesator): 0 ~ 5△;  Increments:  1△
Model B (with prism compensator): 0 ~ 20△; Increments: 1△
Prism basal angle: 0 ~ 180°Minimum scale value 1°
 
Ocular visibility: -5Dpt ~ +5Dpt
Size of measured lens: Φ16 ~ Φ80mm

Dimensions： 280mm(L)×150mm(W)×450mm(H)
Weight:  Model A 4.9 kg
                Model B (with prism compensator) 5.0 kg
Lamp of Illumination: 220V/110V, 15W