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Items 61 to 80 of 421 total

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  1. Optolong H-Beta 25nm Filter 1.25" Mounted

    Optolong - H-Beta 25nm Filter - 1.25" Mounted

    This Optolong H-Beta filter has a FWHM of 25nm, making it more suitable for visual observations of the Horsehead, California, and Cocoon nebulae. The filters transmits a 25nm transfer speed of light that is focused at 486nm and accuracy blocks outside wavelengths of light that cause light pollution (both artificial and natural).

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    Model#: HBTA25-125

    Available - Ships in 2-4 Days

    $90.00

  2. Optolong H-Alpha 7nm Filter - EOS Full Frame Clip

    Optolong - H-Alpha 7nm Filter - EOS Full Frame Clip

    The Optolong H-Alpha 7nm is a very narrow emission-line filter that works by permitting a 7nm bandwidth of light, focused on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

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    (48 States)
    Model#: EOSFF-HAL7

    Available - Ships in 2-4 Days

    $239.00

  3. Optolong H-Alpha 7nm Filter - EOS APS C Clip

    Optolong - H-Alpha 7nm Filter - EOS APS C Clip

    The Optolong H-Alpha 7nm is a very narrow emission-line filter that works by permitting a 7nm bandwidth of light, focused on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

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    (48 States)
    Model#: EOSAPS-HAL7

    Available - Ships in 2-4 Days

    $219.00

  4. Optolong H-Alpha 7nm CCD Filter - 50mm Unmounted

    Optolong - H-Alpha 7nm CCD Filter - 50mm Unmounted

    The Optolong H-Alpha 7nm is a very narrow emission-line filter that works by permitting a 7nm bandwidth of light, focused on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

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    (48 States)
    Model#: HAL7-50U

    Available - Ships in 2-4 Days

    $259.00

  5. Optolong H-Alpha 7nm CCD Filter - 36mm Unmounted

    Optolong - H-Alpha 7nm CCD Filter - 36mm Unmounted

    The Optolong H-Alpha 7nm is a very narrow emission-line filter that functions by permitting a 7nm light bandwidth, focused on the 656nm wavelength through, and obstructing the transmission of contrast-killing light-pollution wavelengths.

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    Model#: HAL7-36U

    Available - Ships in 2-4 Days

    $193.00

  6. Optolong H-Alpha 7nm CCD Filter 31mm Unmounted

    Optolong - H-Alpha 7nm CCD Filter - 31mm Unmounted

    The Optolong H-Alpha 7nm is a very narrow emission-line filter that functions by permitting a 7nm light bandwidth, focused on the 656nm wavelength through, and obstructing the transmission of contrast-killing light-pollution wavelengths.

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    Model#: HAL7-31U

    Available - Ships in 2-4 Days

    $190.00

  7. Optolong H-Alpha 7nm CCD Filter - 2" Mounted

    Optolong - H-Alpha 7nm CCD Filter - 2" Mounted

    The Optolong H-Alpha 7nm is an very narrow emission-line filter that works by permitting a 7nm bandwidth of light, fixated on the 656nm wavelength through, and blocking the transmission of contrast killing wavelengths of light pollution.

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    (48 States)
    Model#: HAL7-200

    Available - Ships in 2-4 Days

    $259.00

  8. Optolong H-Alpha 7nm CCD Filter - 1.25" Mounted

    Optolong - H-Alpha 7nm CCD Filter - 1.25" Mounted

    The Optolong H-Alpha 7nm is an very narrow emission-line filter that works by permitting a 7nm bandwidth of light, fixated on the 656nm wavelength through, and blocking the transmission of contrast killing wavelengths of light pollution.

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    Model#: HAL7-125

    Available - Ships in 2-4 Days

    $175.00

  9. Optolong H-Alpha 12nm Filter - EOS Full Frame Clip

    Optolong - H-Alpha 12nm Filter - EOS Full Frame Clip

    The Optolong H-Alpha 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

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    Model#: EOSFF-HAL12

    Available - Ships in 2-4 Days

    $180.00

  10. Optolong H-Alpha 12nm Filter - EOS APS C Clip

    Optolong - H-Alpha 12nm Filter - EOS APS C Clip

    The Optolong H-Alpha 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths. ... Learn More

    Model#: EOSAPS-HAL12

    Available - Ships in 2-4 Days

    $160.00

  11. Optolong H-Alpha 12nm CCD Filter - 50mm Unmounted

    Optolong - H-Alpha 12nm CCD Filter - 50mm Unmounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm light bandwidth, focused on the 656nm wavelength through, and hindering the transmission of contrast-killing light pollution wavelengths.

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    (48 States)
    Model#: HAL12-50U

    Available - Ships in 2-4 Days

    $209.00

  12. Optolong - H-Alpha 12nm CCD Filter - 50mm Square Unmounted

    Optolong - H-Alpha 12nm CCD Filter - 50mm Square Unmounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm light bandwidth, focused on the 656nm wavelength through, and hindering the transmission of contrast-killing light pollution wavelengths.

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    (48 States)
    Model#: HAL12-50SQ

    Available - Ships in 2-4 Days

    $259.00

  13. Optolong - H-Alpha 12nm CCD Filter - 36mm Unmounted

    Optolong - H-Alpha 12nm CCD Filter - 36mm Unmounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm light bandwidth, focused on the 656nm wavelength through, and hindering the transmission of contrast-killing light pollution wavelengths.

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    Model#: HAL12-36U

    Available - Ships in 2-4 Days

    $169.00

  14. Optolong H-Alpha 12nm CCD Filter 31mm Unmounted

    Optolong - H-Alpha 12nm CCD Filter - 31mm Unmounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm light bandwidth, focused on the 656nm wavelength through, and hindering the transmission of contrast-killing light pollution wavelengths.

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    Model#: HAL12-31U

    Available - Ships in 2-4 Days

    $163.00

  15. Optolong H-Alpha 12nm CCD Filter - 2" Mounted

    Optolong - H-Alpha 12nm CCD Filter - 2" Mounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm bandwidth of light, fixated on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

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    Model#: HAL12-200

    Available - Ships in 2-4 Days

    $199.00

  16. Optolong - H-Alpha 12nm CCD Filter - 1.25" Mounted

    Optolong - H-Alpha 12nm CCD Filter - 1.25" Mounted

    The Optolong H-Alpha 12nm Narrowband Filter works by permitting a 12nm bandwidth of light, fixated on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

    ...
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    Model#: HAL12-125

    Available - Ships in 2-4 Days

    $109.00

  17. Optolong CLS-CCD Filter -1.25" Mounted

    Optolong - CLS-CCD Filter -1.25" Mounted

    The Optolong CLS-CCD filter will boost contrast and increase visibility of faint outer regions on most emission nebulae, planetary nebulae, and supernova remnants from light polluted areas when photographed with a color imaging camera.

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    Model#: CLSCCD-125

    Available - Ships in 2-4 Days

    $96.00

  18. Optolong CLS-CCD Filter - EOS Full Frame Clip

    Optolong - CLS-CCD Filter - EOS Full Frame Clip

    The Optolong CLS-CCD filter will enhance contrast and increase visibility of faint outer regions on most emission, planetary, and supernovae remnant nebulae from light polluted locations when photographed with a color imaging camera.

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    Model#: EOSFF-CLSCCD

    Available - Ships in 2-4 Days

    $135.00

  19. Optolong CLS-CCD Filter - EOS APS C Clip

    Optolong - CLS-CCD Filter - EOS APS C Clip

    The Optolong CLS-CCD filter will enhance contrast and increase visibility of faint outer regions on most emission, planetary, and supernovae remnant nebulae from light polluted locations when photographed with a color imaging camera.

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    Model#: EOSAPS-CLSCCD

    Available - Ships in 2-4 Days

    $155.00

  20. Optolong CLS Filter - Nikon D7000/D7100 Clip

    Optolong - CLS Filter - Nikon D7000/D7100 Clip

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    Model#: NIKD7-CLS

    Available - Ships in 2-4 Days

    $109.00

Items 61 to 80 of 421 total

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