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50mm Filters

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  1. Optec - #8 Pale Yellow, 50mm diam. x 2mm thick.

    Optec - #8 Pale Yellow, 50mm diam. x 2mm thick.

    Does a better job blocking the violet and UV at the expense of ... Learn More
    Model#: 17231
    $30.00

  2. Optec - #47B Blue, 50mm diam x 2mm thick

    Optec - #47B Blue, 50mm diam x 2mm thick

    This filter is used for RGB imaging to pass the blue band ... Learn More
    Model#: 17236
    $30.00

  3. Optec - #29 Deep Red, mounted in 48mm threaded cell.

    Optec - #29 Deep Red, mounted in 48mm threaded cell.

    #29 Deep Red - Passes light longer that 610 nm. This filter is a little more effective than the #23A in dakening the sky ... Learn More
    Model#: 17437
    $45.00

  4. Optec - #23A Light Red,  50mm diam x 2mm thick

    Optec - #23A Light Red, 50mm diam x 2mm thick

    Blocks blue and green light completely, passes light longer than ... Learn More
    Model#: o17235
    $30.00

  5. Optec - #21 Orange, 50mm diam x 2mm thick

    Optec - #21 Orange, 50mm diam x 2mm thick

    Optec - #21 Orange, 50mm diam x 2mm thick ;Blocks blue completely and ... Learn More
    Model#: 17233
    $30.00

  6. Optec - #12 Yellow, 50mm diam x 2mm thick

    Optec - #12 Yellow, 50mm diam x 2mm thick

    Optec - #12 Yellow Wratten filter 50mm x2mm ... Learn More
    Model#: 17232
    $30.00

  7. IDAS - Hutech - 50mm Unmounted LPS Filter

    IDAS - Hutech - 50mm Unmounted LPS Filter

    Light pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae.

    ...
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    Model#: LPS-P2-50
    $189.00

  8. FLI Research Grade 50mm Square Sulfur II - 5nm

    FLI - Research Grade 50mm Square Sulfur II - 5nm

    FLI's high transmission filters are manufactured in the United States with the highest quality fabrication techniques available.

    ...
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    (48 States)
    Model#: RG-50S-SII5
    $875.00

  9. FLI - Research Grade 50mm Square Sulfur II - 3

    FLI - Research Grade 50mm Square Sulfur II - 3

    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.

    ...
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    (48 States)
    Model#: RG-50S-SII3
    $1,250.00

  10. FLI Research Grade 50mm Square Oxygen III - 5nm

    FLI - Research Grade 50mm Square Oxygen III - 5nm

    FLI's 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.

    ...
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    (48 States)
    Model#: RG-50S-OIII5
    $875.00

  11. FLI Research Grade 50mm Square Oxygen III - 5nm

    FLI - Research Grade 50mm Square Oxygen III - 3nm

    FLI's 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.

    ...
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    (48 States)
    Model#: RG-50S-OIII3
    $1,250.00

  12. FLI Research Grade 50mm Square Ha 8nm

    FLI - Research Grade 50mm Square Ha - 5nm

    FLI's 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.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: RG-50S-HA5
    $875.00

  13. FLI Research Grade 50mm Square Ha 3nm

    FLI - Research Grade 50mm Square Ha - 3nm

    FLI's 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.

    ...
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    (48 States)
    Model#: RG-50S-HA3
    $1,250.00

  14. FLI - Research Grade 50mm Diameter UBVRI Filters

    FLI - Research Grade 50mm Diameter UBVRI Filters

    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.

    ...
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    (48 States)
    Model#: RG-50D-UBVRI
    $1,495.00

  15. FLI - Research Grade 50mm Diameter SII

    FLI - Research Grade 50mm Diameter SII

    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.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: RG-50D-SII
    $495.00

  16. FLI - Research Grade 50mm Diameter OIII

    FLI - Research Grade 50mm Diameter OIII

    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.

    ...
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    (48 States)
    Model#: RG-50D-OIII
    $495.00

  17. FLI - Research Grade 50mm Diameter Luminance IR

    FLI - Research Grade 50mm Diameter Luminance IR

    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.

    ...
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    (48 States)
    Model#: RG-50D-L
    $225.00

  18. FLI - Research Grade 50mm Diameter LRGB filters

    FLI - Research Grade 50mm Diameter LRGB filters

    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.

    ...
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    (48 States)
    Model#: RG-50D-LRGB
    $1,195.00

  19. FLI - Research Grade 50mm Diameter Clear

    FLI - Research Grade 50mm Diameter Clear

    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.

    ...
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    Model#: RG-50D-C
    $120.00

  20. Custom Scientific UBVRI 50mm Unmounted Round Filter Set

    Custom Scientific - UBVRI 50mm Unmounted Round Filter Set

    Custom Scientific UBVRI filters have been used in institutions and observatories around the world such as Kitt Peak, Mauna Kea, and the CTIO/Chile.

    ...
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    FREE SHIPPING
    (48 States)
    Model#: CU-UBVRI50-SET
    $1,475.00

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