Illumination form: Large light spot (3.2mm) small light spot (1.6mm) slit, central net, redfree
Diopter compensation: 0, ± 1D, ± 2D, ± 3D, ± 4D, ± 5D, ± 6D, ± 8D, ± 10D, ± 12D, ± 16D, ± 20D, -25D
Light source: 2.6V1.6W mini-halogen lamp
Power supply: DC 2# /5# batteries of 1.5 V |
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