Name: 
Model: SY1501
SpecificationPhoropter
Sphere power：
Range：+16.75D～-19.00D
Step：0.25D
Cylinder power：
Range：0.00D～-6.00D
0.00D～-8.00D
(when applied with auxiliary lens -2.00D)
 Step：0.25D
Cylinder axis：Range：0°～180° Step：5°
Cross cylinder： ±25D
Rotary prism： Range：0△～20△ Step：1△
P．D．adjustment：50～75mm
Convergence adjustment：∞, 380mm(when P.D.64mm)
Forehead rest adjustment：16mm
Vertex distance：12mm
Standard accessorial lens： circinal lens, double even lens
Standard accessories：near point card, reading rod, dust cover, face mat, lens accessorial instrument
Size：318(L)×96(W)×292(H)(mm)
Weight：≈4.5Kg