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  1. Optolong UBVRI Filter Set - 1.25" Mounted

    Optolong - UBVRI Filter Set - 1.25" Mounted

    This photometric UBVRI filter set includes five 1.25" mounted filters: ultraviolet (U), blue (B), visual (V), red (R), and infrared (I). 

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    (48 States)
    Model#: UBVRI-125
    $685.00

  2. Optolong - SII CCD 6.5nm Filter - 50mm Square Unmounted

    Optolong - SII CCD 6.5nm Filter - 50mm Square Unmounted

    The Optolong Sulfur II 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is centered at 672nm and radically decreases other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural).

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    (48 States)
    Model#: SIICCD65-50SQ
    $299.00

  3. Optolong SII CCD 6.5nm Filter - 31mm Unmounted

    Optolong - SII CCD 6.5nm Filter - 31mm Unmounted

    The Optolong Sulfur II 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is centered at 672nm and radically decreases other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural).

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    Model#: SIICCD65-31U
    $193.00

  4. Optolong SII CCD 6.5nm Filter - 2" Mounted

    Optolong - SII CCD 6.5nm Filter - 2" Mounted

    The Optolong Sulfur II 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is centered at 672nm and radically decreases other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural).

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    (48 States)
    Model#: SIICCD65-200
    $250.00

  5. Optolong SII CCD 6.5nm Filter - 1.25" Mounted

    Optolong - SII CCD 6.5nm Filter - 1.25" Mounted

    The Optolong Sulfur II 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is centered at 672nm and radically decreases other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural).

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    Model#: SIICCD65-125
    $159.00

  6. Optolong - SII CCD 12nm Filter - 50mm Unmounted

    Optolong - SII CCD 12nm Filter - 50mm Unmounted

    The Optolong Sulfur II 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 672nm wavelength through, and blocking contrast-killing light pollution wavelengths from coming through.

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    (48 States)
    Model#: SIICCD12-50U
    $209.00

  7. Optolong SII CCD 12nm Filter - 36mm Unmounted

    Optolong - SII CCD 12nm Filter - 36mm Unmounted

    The Optolong Sulfur II 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 672nm wavelength through, and blocking contrast-killing light pollution wavelengths from coming through.

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    Model#: SIICCD12-36U
    $159.00

  8. Optolong SII CCD 12nm Filter - 31mm Unmounted

    Optolong - SII CCD 12nm Filter - 31mm Unmounted

    The Optolong Sulfur II 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 672nm wavelength through, and blocking contrast-killing light pollution wavelengths from coming through.

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    Model#: SIICCD12-31U
    $153.00

  9. Optolong SII CCD 12nm Filter - 2" Mounted

    Optolong - SII CCD 12nm Filter - 2" Mounted

    The Optolong Sulfur II 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 672nm wavelength through, and blocking contrast-killing light pollution wavelengths from coming through.

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    (48 States)
    Model#: SIICCD12-200
    $209.00

  10. Optolong SII CCD 12nm Filter - 1.25" Mounted

    Optolong - SII CCD 12nm Filter - 1.25" Mounted

    The Optolong Sulfur II 12nm Narrowband Filter works by allowing a 12nm bandwidth of light, centered on the 672nm wavelength through, and blocking contrast-killing light pollution wavelengths from coming through.

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    Model#: SIICCD12-125
    $129.00

  11. Optolong OWB Original White Balance Filter - Nikon D7000/D7100 Clip

    Optolong - OWB Original White Balance Filter - Nikon D7000/D7100 Clip

    If you have a Nikon D7000 or D7100 camera that has been changed for astronomical use, this clip-in Optolong OWB filter will allow you to use the camera for terrestrial observation again!

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    Model#: NIKD7-OWB
    $95.00

  12. Optolong OWB Original White Balance Filter - Nikon D5000/D5100 Clip

    Optolong - OWB Original White Balance Filter - Nikon D5000/D5100 Clip

    If you have a Nikon D5000 or D5100 camera that has been changed for astronomical use, this clip-in Optolong OWB filter will allow you to use the camera for terrestrial observation again!

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    Model#: NIKD5-OWB
    $95.00

  13. Optolong OIII CCD 6.5nm Filter - 50mm Unmounted

    Optolong - OIII CCD 6.5nm Filter - 50mm Unmounted

    The Optolong Oxygen III 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is centered at 500nm and radically lessens different transmissions, including wavelengths of light that are in charge of light pollution (both artificial and natural).

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    (48 States)
    Model#: OIIICCD65-50U
    $269.00

  14. Optolong - OIII CCD 6.5nm Filter - 50mm Square Unmounted

    Optolong - OIII CCD 6.5nm Filter - 50mm Square Unmounted

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    (48 States)
    Model#: OIIICCD65-50SQ
    $299.00

  15. Optolong OIII CCD 6.5nm Filter - 31mm Unmounted

    Optolong - OIII CCD 6.5nm Filter - 31mm Unmounted

    The Optolong Oxygen III 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is focused at 500nm and radically decreases other transmissions, including wavelengths of light that are responsible for light pollution (both artificial and natural).

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    Model#: OIIICCD65-31U
    $189.00

  16. Optolong OIII CCD 6.5nm Filter - 2" Mounted

    Optolong - OIII CCD 6.5nm Filter - 2" Mounted

    The Optolong Oxygen III 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is focused at 500nm and radically decreases other transmissions, including wavelengths of light that cause light pollution (both artificial and natural).

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    (48 States)
    Model#: OIIICCD65-200
    $255.00

  17. Optolong - OIII CCD 6.5nm Filter - 1.25" Mounted

    Optolong - OIII CCD 6.5nm Filter - 1.25" Mounted

    The Optolong Oxygen III 6.5nm Extra Narrowband Filter transmits a 6.5nm bandwidth of light that is focused at 500nm and radically decreases different transmissions, including wavelengths of light that are in charge of light contamination (both manufactured and normal).

    ...
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    Model#: OIIICCD65-125
    $159.00

  18. Optolong OIII CCD 12nm Filter - 50mm Square Unmounted

    Optolong - OIII CCD 12nm Filter - 50mm Square Unmounted

    The Optolong Oxygen III 12nm Narrowband Filter transmits a 12nm bandwidth of light that is focused at 500nm and definitely decreases other transmissions, including wavelengths of light that cause light pollution (both artificial and natural).

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    (48 States)
    Model#: OIIICCD12NM-50SQ
    $249.00

  19. Optolong OIII CCD 12nm Filter - 36mm Unmounted

    Optolong - OIII CCD 12nm Filter - 36mm Unmounted

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    Model#: OIIICCD12NM-36U
    $139.00

  20. Optolong OIII CCD 12nm Filter - 31mm Unmounted

    Optolong - OIII CCD 12nm Filter - 31mm Unmounted

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    Model#: OIIICCD12NM-31U
    $130.00

Items 61 to 80 of 461 total

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