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Filter Wheel Filters

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  1. SBIG - 1.25" Filter Insert for FW5- & FW8-8300

    SBIG - 1.25" Filter Insert for FW5- & FW8-8300

    1.25" Filter Insert for FW5- & FW8-8300 ... Learn More
    Model#: SB10105
    $24.00

  2. QSI - Astronomik 1.25" Dark Filter

    QSI - Astronomik 1.25" Dark Filter

    Astronomik 1.25" dark "filter". This is a threaded 1.25" filter cell with an opaque solid disk to prevent light from striking the CCD. It can be used for taking bias and dark frames without the use of a mechanical shutter ... Learn More
    Model#: FL1-AS-DARK
    $29.00

  3. Celestron - Skryis IR-Block Filter

    Celestron - Skryis IR-Block Filter

    Color CCD cameras such as the Skyris color planetary cameras are very sensitive across the visual spectrum, as well as in infrared.

    ...
    Learn More
    Model#: 95516
    $29.95

  4. 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

  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, 50mm diam x 2mm thick

    Optec - #29 Deep Red, 50mm diam x 2mm thick

    Passes light longer that 610 nm. This filter is ... Learn More
    Model#: o17237
    $30.00

  7. 17229

    Optec - Violet rejection filter, 50mm diam x 2mm thick.

    Most refractor optics including apochromatic telescopes are not ... Learn More
    Model#: 17229
    $30.00

  8. 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

  9. Optec - ND 0.6 (25% T), Neutral Density 25% transmission, 2.0±0.4mm thick.
  10. 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

  11. Optec - #58 Light Green, 50mm diam x 2mm thick

    Optec - #58 Light Green, 50mm diam x 2mm thick

    an inexpensive way to get the sharpest image from most telescope systems. ... Learn More
    Model#: 17238
    $30.00

  12. Optec - Clear window, 2.0±0.4mm thick.
  13. 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

  14. 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

  15. Astronomik - MC Clear Multicoated Filter - 1.25" Round Mounted

    Astronomik - MC Clear Multicoated Filter - 1.25" Round Mounted

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

    ...
    Learn More
    Model#: C-1
    $44.95

  16. Optec - #23A Light Red, mounted in 48mm threaded cell.

    Optec - #23A Light Red, mounted in 48mm threaded cell.

    #23A Light Red - Blocks blue and green light completely. Passes light longer than 600nm ... Learn More
    Model#: 17435
    $45.00

  17. Optec - Premium UV blocking filter with 435nm cutoff, mounted in 48mm threaded cell.

    Optec - Premium UV blocking filter with 435nm cutoff, mounted in 48mm threaded cell.

    Premium UV/Violet Block - Optec acquired a limited number of Schott glass filters made from GG-435 glass. Similar to #17431 but of higher optical quality ... Learn More
    Model#: 17432
    $45.00

  18. Optec - #58 Light Green, mounted in 48mm threaded cell.

    Optec - #58 Light Green, mounted in 48mm threaded cell.

    #58 Light Green - Like the #47B, this filter was used for early RGB imaging. The low transmission in the green and some IR leak makes it a poor choice now for color work ... Learn More
    Model#: 17438
    $45.00

  19. 17430

    Optec - Violet light rejection filter, mounted in 48mm threaded cell.

    Violet Light Rejection - Blocks the UV and violet light shorter than 420nm. Most refractor optics including apochromatic telescopes are not well corrected in the short wavelengths ... Learn More
    Model#: 17430
    $45.00

  20. Optec - #47B Blue, mounted in 48mm threaded cell.

    Optec - #47B Blue, mounted in 48mm threaded cell.

    #47B Blue - Before the availability of cheap and good dichroic filters, this filter was used for RGB imaging to pass the blue band. Low transmission in the blue and very transparent in the IR makes this filter useful only for special projects ... Learn More
    Model#: 17436
    $45.00

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