* Exquisite exterior shape and advanced mechanical features
* AC/DC power source
* Portable, convenient to test in hand or on desk at anytime and anywhere
Specifications:
Vertex diopter |
Range |
+15diopterto-20dioper |
Step |
0-(±)10D for 0.125D |
|
Prism diopter |
Range |
4 prism diopter |
Step |
1 diopter |
|
Prism Axis |
Range |
0 to 180° |
Step |
1° |
|
Lens Diameter |
20mm to 80mm |
|
Eyepiece Focusing |
-5D to +5D |
|
DC and AC |
(DC)3v (AC)6V/3W |