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Parallax Instruments

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  1. Parallax - 8.9 " OD Tube Rings (Celestron C-8)

    Parallax - 8.9 " OD Tube Rings (Celestron C-8)

    Parallax - 8.9" OD Tube Rings (Celestron C-8)These 8.9" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_8.9
    $200.00

  2. Parallax - 10 " OD Tube Rings

    Parallax - 10 " OD Tube Rings

    Parallax - 10" OD Tube Rings These 10" 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
    $215.00

  3. Parallax - 12 " extra heavy duty tube rings- for 10"-12 " refractors

    Parallax - 12 " extra heavy duty tube rings- for 10"-12 " refractors

    Parallax - 12" OD Extra Heavy Duty Tube Rings for 10"-12" RefractorsThese 12" outside diameter split tube rings are made of extra heavy die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ptr_12_xhd
    $400.00

  4. ptr_15

    Parallax - 15 " OD Tube Rings

    Parallax - 15" OD Tube Rings These 15" 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
    $309.00

  5. ptr_114mm

    Parallax - 114 mm OD Tube Rings (102 ED/APO, Takahashi FS-102 and FSQ-106, 4 " Unitron)

    Parallax - 114mm OD Tube Rings (102 ED/APO, Takahashi FS-102 & FSQ-106, 4" Unitron)These 114mm outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_114mm
    $125.00

  6. ptr_17.5

    Parallax - 17.5 " OD Tube Rings (Meade 16 " SCT)

    Parallax - 17.5" OD Tube Rings (Meade 16" SCT)These 17.5" 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_17.5
    $429.00

  7. Parallax - 6 " OD Tube Rings (D&G 5 " Refractor and TEC 140 APO)

    Parallax - 6 " OD Tube Rings (D&G 5 " Refractor and TEC 140 APO)

    Parallax - 6" OD Tube Rings (D&G 5" Refractor, TEC 140 APO)These 6" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_6
    $160.00

  8. Parallax-Portable piers up to 20" high

    Parallax-Portable piers up to 20" high

    These are the exact same portable piers that are supplied with our heavy duty HD series German equatorial mounts.   FEATURES10" OD x .090" wall thickness aluminum - reinforced at the bottom for strength, yet light in weight ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: pp20
    $875.00

  9. Parallax - 7.5 " OD Tube Rings (Starfinder 6 ", Parks 6 ")

    Parallax - 7.5 " OD Tube Rings (Starfinder 6 ", Parks 6 ")

    Parallax - 7.5" OD Tube Rings (Starfinder 6", Parks 6")These 7.5" outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_7.5
    $180.00

  10. Parallax - 232 mm OD Tube Rings (Takahashi E-180, Vixen Visac 200 Newtonian)

    Parallax - 232 mm OD Tube Rings (Takahashi E-180, Vixen Visac 200 Newtonian)

    Parallax - 232mm OD Tube Rings (Takahashi E-180, Vixen Visac 200 Newtonian)These 232mm outside diameter split tube rings are made of die-cast aluminum, finished in gloss black paint, and lined with felt ... Learn More
    Model#: ptr_232mm

    Regular Price: $250.00

    Special Price: $199.00

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

Items 21 to 40 of 44 total

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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.