描述
Loudly brand higher quality Lensmeter NJC-5

Features
▲ Internal Reading.
▲ Beautiful appearance.
▲ Wide observation vision field.
▲ Compensation Prism Device OPTION.
Specifications
Eyepiece focusing
|
-5D to +5D
|
Vertex range
|
-20 to +20D
|
Minium measurement value
|
0.125D
|
Prism range
|
5 △ step 1 △
|
The prism shaft range
|
0 – 180 °
|
Lenses accommodated
|
Diameter 20mm to 85mm
|
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