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Extension Tubes

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  1. iOptron - iEQ45 Extension Bar

    iOptron - iEQ45 Extension Bar

    This is the extension bar for the iEQ45. This attaches to the original bar and will create more counterbalance weight. ... Learn More
    Model#: 8026
    $48.00

  2. Explore Scientific - Rack and Pinion Focuser 2" Extension Tube

    Explore Scientific - Rack and Pinion Focuser 2" Extension Tube

    2" Extension tube for Explore Scientific Rack and Pinion focusers.

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    Model#: ESRPEXT2

    Regular Price: $27.99

    Special Price: $11.99

  3. Explore Scientific - Rack and Pinion Focuser 1" Extension Tube

    Explore Scientific - Rack and Pinion Focuser 1" Extension Tube

    1" Extension tube for Explore Scientific Rack and Pinion focusers.

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    Model#: ESRPEXT1

    Regular Price: $27.99

    Special Price: $11.99

  4. Baader Planetarium - Spacer Tube 39mm for 3" RT Steeltrack, with 4" Dovetail

    Baader Planetarium - Spacer Tube 39mm for 3" RT Steeltrack, with 4" Dovetail

    The 3" RT Spacer allows changing back-focus by providing quick connect/disconnect spacing of the 3" RT Steeltrack Focuser (39mm spacing length).4" External Dovetail on one side for attachment of 3" RT Steeltrack Focuser ... Learn More
    Model#: FOC-SPCR
    $69.00

  5. T2-29

    Baader - Planetarium T-2/M48 Expanding Ring

    Baader T-2 Female to M48 Male Expanding Ring # T2-29 2458110

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    Model#: T2-29

    Regular Price: $32.00

    Special Price: $31.00

  6. Avalon Instruments Mini Modular Extender for M-Uno Declination L55 mm

    Avalon Instruments - Mini Modular Extender for M-Uno Declination L55 mm

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    FREE SHIPPING
    (48 States)
    Model#: AVMINIEXT055
    $215.00

  7. Avalon Instruments Extender for Avalon Tripod - 8" Height

    Avalon Instruments - Extender for Avalon Tripod - 8" Height

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    FREE SHIPPING
    (48 States)
    Model#: AVEXT
    $320.00

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