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Parallax Instruments

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  1. Parallax - 11.63 " OD Tube Rings (Meade SN-10 Newtonian)

    Parallax - 11.63 " OD Tube Rings (Meade SN-10 Newtonian)

    Parallax - 11.63" OD Tube Rings (Meade SN-10 Newtonian)These 11.63" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_11.63
    $260.00

  2. Parallax PI400DK 16" f/20 Dall-Kirkham Cassegrain Telescope

    Parallax - PI400DK - 16" f/20 Dall-Kirkham Cassegrain Telescope

    Parallax also offers Classical Cassegrain and Dall-Kirkham Cassegrain telescopes in 10", 12.5", 14.5", and 16" apertures. The Classical Cassegrain offers a very long focal length in a relatively compact tube. Includes 2" Feather Touch or 2

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: PI400DK
    $14,800.00

  3. Parallax - 13.6 " OD Tube Rings (Meade 12 " SCT)

    Parallax - 13.6 " OD Tube Rings (Meade 12 " SCT)

    Parallax - 13.6" OD Tube Rings (Meade 12" SCT)These 13.6" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_13.6
    $289.00

  4. Parallax - 100 mm OD Tube Rings (Orion ED80 and ED100)

    Parallax - 100 mm OD Tube Rings (Orion ED80 and ED100)

    Parallax - 100mm OD Tube Rings (Orion ED80 and ED100)These 100mm outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_100mm
    $125.00

  5. ptr_16

    Parallax - 16 " OD Tube Rings

    Parallax - 16" OD Tube Rings These 16" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_16
    $319.00

  6. Parallax - 5.5 " OD Tube Rings (Astro-Physics 130 EDT, Meade 127EDT, Celestron C-5, Pentax 125)

    Parallax - 5.5 " OD Tube Rings (Astro-Physics 130 EDT, Meade 127EDT, Celestron C-5, Pentax 125)

    Parallax - 5.5" OD Tube Rings (Astro-Physics 130EDT, Meade 127EDT, Celestron C-5, Pentax 125)These 5.5" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_5.5
    $160.00

  7. ptr_22.4

    Parallax - 22.4 " OD Tube Rings

    Parallax - 22.4" OD Tube RingsThese 22.4" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_22.4
    $419.00

  8. Parallax - 7 " OD Tube Rings (Meade 152 ED, D&G 6 " Refractor)

    Parallax - 7 " OD Tube Rings (Meade 152 ED, D&G 6 " Refractor)

    Parallax - 7" OD Tube Rings (Meade 152 ED, D&G 6" Refractor)These 7" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_7
    $170.00

  9. Parallax - 9.5 " rotating rings (Parks 8 " and Starfinder 8 " Newtonians)

    Parallax - 9.5 " rotating rings (Parks 8 " and Starfinder 8 " Newtonians)

    Parallax - 9.5" Rotating Tube Rings (for Parks 8" and Starfinder 8" Newtonians) The most accurate way to re-position the eyepiece on EQ mounted Newtonians ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: prtr_9.5
    $450.00

  10. Parallax - 9 " OD Tube Rings (D&G 8 " Refractor)

    Parallax - 9 " OD Tube Rings (D&G 8 " Refractor)

    Parallax - 9" OD Tube Rings (D&G 8" Refractor)These 9" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_9
    $200.00

  11. Parallax - Telescope Mounting Rings for the Takahashi FSQ-106ED - 125mm

    Parallax - Telescope Mounting Rings for the Takahashi FSQ-106ED - 125mm

    These 125mm outside diameter split tube rings are specifically designed for the Takahashi FSQ106ED, aka the "New Q. They are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: 125MM
    $160.00

  12. Parallax - 10.3 " OD Tube Rings (Celestron C-9.25)

    Parallax - 10.3 " OD Tube Rings (Celestron C-9.25)

    Parallax - 10.3" OD Tube Rings (Celestron C-9.25)These 10.3" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_10.3
    $250.00

  13. Parallax- PI320DK, 12.5 " F/20 Dall-Kirkham Cassegrain telescope

    Parallax- PI320DK, 12.5 " F/20 Dall-Kirkham Cassegrain telescope

    Parallax also offers Classical Cassegrain and Dall-Kirkham Cassegrain telescopes in 10", 12.5", 14.5", and 16" apertures. The Classical Cassegrain offers a very long focal length in a relatively compact tube. Includes 2" Feather Touch or 2 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: PI320DK
    $9,800.00

  14. Parallax - 12 " OD Tube Rings (Celestron C-11)

    Parallax - 12 " OD Tube Rings (Celestron C-11)

    Parallax - 12" OD Tube Rings (Celestron C-11, Parks 10" Newtonian, Meade 10" SCT)These 12" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_12
    $230.00

  15. ptr_3

    Parallax - 3 " OD Tube Rings (TeleVue TV-85 Refractor)

    Parallax - 3" OD Tube Rings (TeleVue TV-85 Refractor)These 3" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_3
    $105.00

  16. ptr_15.3

    Parallax - 15.3 " OD Tube Rings (Celestron C-14)

    Parallax - 15.3" OD Tube Rings (Celestron C-14)These 15.3" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_15.3
    $319.00

  17. ptr_125mm

    Parallax - 125 mm OD Tube Rings (Takahashi FSQ-106ED)

    Parallax - 125mm OD Tube Rings (Takahashi FSQ-106ED)These 125mm outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_125mm
    $160.00

  18. Parallax - 19 " OD Tube Rings (Meade DS16A, 16 " Starfinder)

    Parallax - 19 " OD Tube Rings (Meade DS16A, 16 " Starfinder)

    Parallax - 19" OD Tube Rings (Meade DS16A, 16" Starfinder)These 19" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_19
    $429.00

  19. Parallax - 155 mm OD Tube Rings (Takahashi FS 152, Takahashi TOA-130)

    Parallax - 155 mm OD Tube Rings (Takahashi FS 152, Takahashi TOA-130)

    Parallax - 155mm OD Tube Rings (Takahashi FS 152, Takahashi TOA-130)These 155mm outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_155mm
    $195.00

  20. Parallax - 7 " rotating rings (Ceravolo HD145)

    Parallax - 7 " rotating rings (Ceravolo HD145)

    Parallax - 7" Rotating Tube Rings (for Ceravolo HD145) The most accurate way to re-position the eyepiece on EQ mounted Newtonians ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: prtr_7
    $390.00

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Parallax Instruments, Inc., founded in 1991, is a full-time business devoted to the manufacture of precision astronomical telescopes and equatorial mountings. Armed with a fully equipped machine shop our experienced machinists are capable of turning out just about any custom job. Our professional welder has produced some of the finest observatory piers, each carefully engineered for function and strength. Our motto is "If you can sketch it, we most likely can build it.