• 52 mm 52mm 850nm 850 nm Infrared IR Pass X-Ray Filter - eBay (item 370180866295 end time Apr-28-09 11:25:14 PDT)
  eBay: Find 52 mm 52mm 850nm 850 nm Infrared IR Pass X-Ray Filter in the Cameras Photo , Lenses Filters , Filters , Special Effects , Other category on eBay.
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