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FLI Research Grade 50mm Diameter LRGB Filters


Price: $875.00


  • Manufacturer: Finger Lakes Instrumentation
  • MPN: RG 50D LRGB
  • SKU: RG 50D LRGB
  • Availability: Custom Order - Call for Lead Times & Availability

FLI Research Grade 50mm Diameter LRGB filters.  Our high transmission filters are manufactured in the United States with the highest quality fabrication techniques available. We offer a full line of filter types and sizes. Complete sets are available as well as individual filters in both round and square shapes.

  

Features:
  

AR: Durable AR coatings on both exterior surfaces over applicable transmission range

Scratch Dig: 60/40 or better (max scratch width 0.006mm, max dig 0.40mm)

Transmitted wavefront @ 633nm: Better than 0.25 wave/inch

Wedge: Better than 30 arcsec

Thickness: 5 +/- 0.05mm, par focal +/- 0.2mm, (filters start par focal +/- 0.1mm per recipe)
  

RG 50D LRGB
  
FLI Research Grade filter sets are par focal to F4.5 (individual filters are also available)
Size: 50 mm +0.2 / -0.5mm
Shape: round
Thickness: 3mm +/-0.1mm
Bandwidth: N/A
Parallelism: 30 second or better
Surface Flatness: 1/4 wave per inch




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