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FLI - Research Grade 28mm Diameter V filter from UBVRI

Model#: RG-28D-V

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Availability: In stock

$345.00

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Manufactured by: Finger Lakes Instrumentation

Details

FLI high transmission filters are manufactured in the United States with the highest quality fabrication techniques available. FLI offers a full line of filter types and sizes. Complete sets are available as well as individual filters in both round and square shapes.

FLI Research Grade filter sets are par focal to F4.5 (individual filters are also available, contact FLI)

  • Size: 28mm
  • Shape: round
  • Thickness: 3mm +/-0.1mm
  • Bandwidth: N/A
  • Parallelism: 30 second or better
  • Surface Flatness: 1/4 wave per inch

 

Product Series

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)

Additional Information

Name FLI - Research Grade 28mm Diameter V filter from UBVRI
Manufacturer Finger Lakes Instrumentation
Model RG-28D-V
Parallelism 30 second or better
Shape Round
Size 28mm
Surface Flatness 1/4 wave per inch
Thickness 3mm +/-0.1mm