Penta prism
Optical Glass Irregular Right Angle Pentaprism 90 Degree Polygonal Mirror
From (1 Deals)42.19 GBP
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25MM Optical Glass Irregular Right Angle Pentaprism
From (1 Deals)43.59 GBP
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32x13x20mm Half Pentaprism Optical Glass DIY Telescope Roof Prism Experiment Tool
From (1 Deals)77.69 GBP
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