Happily Serving You in the Same Location for Over 58 Years!

Welcome!

50mm Filters

Items 1 to 20 of 81 total

per page
Page:
  1. 1

Set Ascending Direction
  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.

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

  8. FLI - Research Grade 50mm Diameter UBVRI filters

    FLI - Research Grade 50mm Diameter UBVRI filters

    RG 50D UBVRIFLI Research Grade filter sets are par focal to F4.5 (individual filters are also available, contact FLI)Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 5mm +/-0 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RG 50D UBVRI
    $1,495.00

  9. FLI - Research Grade 50mm Diameter SII

    FLI - Research Grade 50mm Diameter SII

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

  10. FLI - Research Grade 50mm Diameter OIII

    FLI - Research Grade 50mm Diameter OIII

    RG 50D O IIIFLI Research Grade filter sets are par focal to F4.5Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 5mm +/-0 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RG 50D OIII
    $495.00

  11. FLI - Research Grade 50mm Diameter Luminance IR

    FLI - Research Grade 50mm Diameter Luminance IR

    RG 50D LFLI Research Grade filter sets are par focal to F4.5Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 3mm +/-0 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RG 50D L
    $225.00

  12. FLI - Research Grade 50mm Diameter LRGB filters

    FLI - Research Grade 50mm Diameter LRGB filters

    RG 50D LRGBFLI Research Grade filter sets are par focal to F4.5 (individual filters are also available, contact FLI)Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 3mm +/-0 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: RG 50D LRGB
    $1,195.00

  13. FLI - Research Grade 50mm Diameter Clear

    FLI - Research Grade 50mm Diameter Clear

    RG 50D CFLI Research Grade filter sets are par focal to F4.5Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 3mm +/-0 ... Learn More
    Model#: RG 50D C
    $120.00

  14. 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.

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

  15. Custom Scientific - UBVRI 50mm Square Filter Set

    Custom Scientific - UBVRI 50mm Square 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.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: CU-UBVRI50S-SET
    $2,500.00

  16. Custom Scientific Luminance (IR-Blocked Clear) Filter 50mm x 50mm Square

    Custom Scientific - Luminance (IR-Blocked Clear) Filter - 50mm x 50mm Square

    The Custom Scientific Luminance Clear assists in CCD imaging because it preserves the visual spectral wavelengths while suppressing the extra Infrared wavelengths picked up by CCD sensors that the human eye can't detect.

    ...
    Learn More
    Model#: CU-LUM-50S
    $195.00

  17. Custom Scientific Luminance (IR-Blocked Clear) Filter - 50mm Round Unmounted

    Custom Scientific - Luminance (IR-Blocked Clear) Filter - 50mm Round Unmounted

    The Custom Scientific Luminance Clear assists in CCD imaging because it preserves the visual spectral wavelengths while suppressing the extra Infrared wavelengths picked up by CCD sensors that the human eye can't detect.

    ...
    Learn More
    Model#: CU-LUM-50
    $150.00

  18. Custom Scientific - H-Alpha 656.3/4.5 nm Filter - 50mm x 50mm Square

    Custom Scientific - H-Alpha 656.3/4.5 nm Filter - 50mm x 50mm Square

    The Custom Scientific H-Alpha 656.3/4.5 nanometer filter is a great accessory for imaging emission nebulae which emit large amounts of the H-Alpha spectral line at a 4.5 nanometer bandpass due to excited hydrogen atoms.

    ...
    Learn More
    Model#: CU-HA45NM-50S
    Call for pricing.

  19. Custom Scientific H-Alpha 656.3/4.5 nm Filter 50mm Round Unmounted

    Custom Scientific - H-Alpha 656.3/4.5 nm Filter - 50mm Round Unmounted

    The Custom Scientific H-Alpha 656.3/4.5 nanometer filter is a great accessory for imaging emission nebulae which emit large amounts of the H-Alpha spectral line at a 4.5 nanometer bandpass due to excited hydrogen atoms.

    ...
    Learn More
    Model#: CU-HA45NM-50
    Call for pricing.

  20. Custom Scientific "V" Standard Grade Filter 50mm Round Unmounted

    Custom Scientific - "V" Standard Grade Filter - 50mm Round Unmounted

    With over 20 years in the business, Custom Scientific UBVRI filters are popular photometric tools that have built in Infrared blocking for more efficient and higher quality CCD imaging.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: CU-50V
    $295.00

Items 1 to 20 of 81 total

per page
Page:
  1. 1

Set Ascending Direction