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  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 - #80A Medium Blue, 50mm diam x 2mm thick

    Optec - #80A Medium Blue, 50mm diam x 2mm thick

    Low transmission in the blue and very transparent in ... Learn More
    Model#: 17239
    $30.00

  7. 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

  8. Optec - #8 Pale Yellow, mounted in 48mm threaded cell.

    Optec - #8 Pale Yellow, mounted in 48mm threaded cell.

    #8 Pale Yellow - Does a better job blocking the violet and UV at the expense of some blue. Recommended for monchromatic use when the most energy flux is to be passed ... Learn More
    Model#: 17431
    $45.00

  9. 17356

    Optec - 5-position Filter Wheel for 50mm diameter filters with mounting tabs

    New filter wheel design allows filters to be easily installed and removed with delrin tabs and spacers. Tab and spacer kit #17581 is included ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17356
    $225.00

  10. Optec - Astrodon Clear filter with UV blocking, 50mm dia., 2mm thick.

    Optec - Astrodon Clear filter with UV blocking, 50mm dia., 2mm thick.

    Astrodon Photometrics UVBRcIc filters adhere to the Johnson/Cousins designs as ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 19436
    $225.00

  11. 17353

    Optec - 5-position Filter Wheel for 2" diameter filters with mounting tabs

    New filter wheel design allows filters to be easily installed and removed with delrin tabs and spacers. Tab and spacer kit #17584 is included ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17353
    $225.00

  12. 17357

    Optec - 8-Position Filter Wheel, for 25.4m Filters with Mounting Tabs

    New filter wheel design allows filters to be easily installed and removed with delrin tabs and spacers. Tab and spacer kit #17580 is included ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17357
    $245.00

  13. Optec - Astrodon Ic photometric filter, 50mm diameter, 3mm thick.

    Optec - Astrodon Ic photometric filter, 50mm diameter, 3mm thick.

    Astrodon Photometrics UVBRcIc filters adhere to the Johnson/Cousins designs as ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 19435
    $320.00

  14. Optec - Astrodon Rc photometric filter, 50mm diameter, 3mm thick.

    Optec - Astrodon Rc photometric filter, 50mm diameter, 3mm thick.

    Astrodon Photometrics UVBRcIc filters adhere to the Johnson/Cousins designs as ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 19434
    $320.00

  15. 17363

    Optec - 9-position Filter Wheel for 50mm Round Filters with mounting tabs

    Wheel design allows for up to 9 filters of 50mm round size to be user installed. Optec has a complete selection of 50mm round filters. Wheel can easily be inserted into the filter wheel selector without removing anything from the instrument train ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17363
    $345.00

  16. 17361

    Optec - 5-position Filter Wheel for 58mm Square Filters with mounting tabs

    Wheel design allows for up to 5 filters of 58mm square size to be user installed. The 58mm square filters are a new standard from Optec. Wheel can easily be inserted into the filter wheel selector without removing anything from the instrument train ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17361
    $345.00

  17. 17362

    Optec - 6-position Filter Wheel for 50mm Square Filters with mounting tabs

    Wheel design allows for up to 6 filters of 50mm square size to be user installed. The 50mm square filters are not available from Optec but are commonly available from other astronomical filter suppliers ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17362
    $345.00

  18. Optec - Astrodon "I"-series LRBG filter set, 50mm diameter x 3mm thick.

    Optec - Astrodon "I"-series LRBG filter set, 50mm diameter x 3mm thick.

    Astrodon Tru-Balance RGB filters have revolutionized CCD ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 19125
    $825.00

  19. Optec - IFW 2" Intelligent Filter Selector System.

    Optec - IFW 2" Intelligent Filter Selector System.

    The IFW is so named because it is capable of storing and recalling filter names ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17350
    $829.00

  20. Optec - IFW 3" Intelligent 3" Filter Selector System.

    Optec - IFW 3" Intelligent 3" Filter Selector System.

    To meet the needs of the ever increasing CCD size used in astro-imaging, ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17360
    $1,295.00

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