| Model: | - |
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| Brand: | - |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Electronic Instrument / Optical Lens & Instrument |
| Label: | Risley Prism , Handheld RisleyPrism , Phoria Measure |
| Price: |
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| Min. Order: | - |
| Live Chat: | Last Online:28 Jun, 2022 |
Prism ranges: +/- 20 PD with handle.
With red Maddox filter. The prism power is controlled with a convenient knurled rotating knob. Accurately calibrated dial shows prism diopter selected.
