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- Overview
- Filter Specifications
- Transmission Curves
Research Grade Filters Enduring Quality
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.
- 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, parfocal +/- 0.2mm, (filters start parfocal +/- 0.1mm per recipe)
Filter Model |
| {product_model} |
FLI {fli_product_number} |
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Color Filter Wheel Specifications |
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Filter Size: |
{size} | U.S. Price: {us_price} |
Filter Shape: |
{shape} | International: Contact your local FLI distributor |
Filter Description |
{product_description} | |
Filter Thickness: |
{thickness} | |
Parallelism |
{parallelism} | |
Bandwidth |
{bandwidth} | |
Surface Flatness |
{surface_flatness} | |
Typical transmission curves for our filters
- U
- B
- V
- R
- I
- Lum
- Red
- Green
- Blue
- Ha
- SII
- OIII
These filters are A/R coated Johnson/Bessell filters that are blocked up to 1200nm
These filters are A/R coated Johnson/Bessell filters that are blocked up to 1200nm
These filters are A/R coated Johnson/Bessell filters that are blocked up to 1200nm
These filters are A/R coated Johnson/Bessell filters that are blocked up to 1200nm
These filters are A/R coated Johnson/Bessell filters that are blocked up to 1200nm
