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

Welcome!

50mm Filters

Items 1 to 20 of 70 total

per page
Page:
  1. 1

Set Descending Direction
  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. Astronomik - Multicoated (MC) Clear Filter - 50mm Round Unmounted

    Astronomik - Multicoated (MC) Clear Filter - 50mm Round Unmounted

    This Multicoated (MC) glass serves as dust protector or to keep your system parfocal with other Astronomik filters.

    ...
    Learn More
    Model#: C-50R
    $79.95

  8. Astronomik - Luminance Filter - 50mm Round Unmounted

    Astronomik - Luminance Filter - 50mm Round Unmounted

    The Astronomik UV and IR cut Filter is great for for digital photography!

    ...
    Learn More
    Model#: L-50R
    $119.95

  9. 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

  10. Baader Planetarium - UV / IR Cut / L-Filter 50.4mm (3mm glass thickness) Round

    Baader Planetarium - UV / IR Cut / L-Filter 50.4mm (3mm glass thickness) Round

    Baader Planetarium has introduced the world's finest UV/IR cut filter. This filter is a must for all digital imaging with Digital Cameras, CCD Cameras, and modified WebCams ... Learn More
    Model#: FUVIR-RD50
    $137.00

  11. Astronomik - Luminance Filter - 50mm Square Unmounted

    Astronomik - Luminance Filter - 50mm Square Unmounted

    The Astronomik UV and IR cut Filter is great for for digital photography!

    ...
    Learn More
    Model#: L-50SQ
    $159.95

  12. Baader Planetarium - UV / IR Cut / L-Filter 50x50mm (3mm glass thickness) Square

    Baader Planetarium - UV / IR Cut / L-Filter 50x50mm (3mm glass thickness) Square

    Baader Planetarium has introduced the world's finest UV/IR cut filter. This filter is a must for all digital imaging with Digital Cameras, CCD Cameras, and modified WebCams ... Learn More
    Model#: FUVIR-SQ50
    $169.00

  13. 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

  14. Astronomik - CLS Visual Light Pollution Filter - 50mm Round Unmounted

    Astronomik - CLS Visual Light Pollution Filter - 50mm Round Unmounted

    The Astronomik Visual CLS is a light pollution filter for black & white and color imaging of nebulae, galaxies and star clusters.

    ...
    Learn More
    Model#: CLS-50R
    $189.95

  15. 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

  16. Chroma filters

    Chroma Technology - Red 50mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Red-50
    $230.00

  17. Chroma Technology - Green 50mm Diameter Filter - Unmounted

    Chroma Technology - Green 50mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Green-50
    $230.00

  18. Chroma filters

    Chroma Technology - Luminance 50mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Lum-50
    $230.00

  19. Chroma filters

    Chroma Technology - Blue 50mm Diameter Filter - Unmounted

    Extremely durable coatings withstand humidity changes, extreme temperature fluxes and remain spectrally accurate in CWL and band pass adherence.

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: Blue-50
    $230.00

  20. Astronomik - CLS Light Pollution Filter - 50mm Square Unmounted

    Astronomik - CLS Light Pollution Filter - 50mm Square Unmounted

    Astronomik CLS Filter- 50mm Square UnmountedThe Astronomik CLS is our inexpensive sollution for the visual deep-sky observation, b&w photography and CCD observation

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: CLS-50SQ
    $249.95

Items 1 to 20 of 70 total

per page
Page:
  1. 1

Set Descending Direction