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  1. Collimating tube

    $63.00
    The Takahashi TCE0030 collimating tube provides crosshairs to convert the Takahashi TCE0020 collimating eyepiece into a sighting tube for collimating Newtonian reflectors. 
  2. Takahashi S coupling to connect TCE0100 to Takahashi scopes

    $52.00
    This Takahashi S coupling connects the Takahashi TCE0100 collimating scope to Takahashi telescopes.
  3. Bob's Knobs 3 Collimating knobs for Astro-Tech 12" RC astrograph secondary mirror

    $25.95
    These no-tool collimation knobs fit the Astro-Tech 12" Ritchey-Chrétien astrographs only . . .
  4. Bob's Knobs 3 Collimating knobs for Astro-Tech 10" RC astrograph secondary mirror

    $25.95
    These no-tool collimation knobs fit the Astro-Tech 10" Ritchey-Chrétien astrographs only . . .
  5. Astro-Tech Newtonian reflector collimating tool

    $34.95

    The Astro-Tech ATCOLL 1.25" dual-purpose Newtonian reflector collimating tool combines a sight tube and a Cheshire eyepiece. Unlike more expensive competitive Cheshire eyepieces, it has a soft fold-down rubber eyecup to improve contrast during use and protect eyeglasses from getting scratched.

  6. Astro-Tech 1.25"/2" laser collimator

    $44.95
    This 1.25" red Astro-Tech Laser Collimator, with 2" adapter, makes quick work of collimating the optics on your Newtonian reflector telescope . . .
  7. Astrozap Artificial star

    $110.00
    The economical Astrozap artificial star provides a steady, stable first magnitude pinpoint of light to allow you to precisely collimate your scope in the field without worrying about star drift or seeing conditions . . .
  8. 3 Collimating knobs | Meade 16" LX200 with six screw secondary

    $25.95
    These no-tool collimation knobs fit recent Meade 16" LX200 Schmidt-Cassegrain telescopes and current 16" LX200R Advanced Ritchey-Chrétien telescopes with a 6-screw secondary . . .
  9. 3 Collimating knobs for metric Celestron 9.25" CPC 925 SCTs

    $20.95
    These no-tool collimation knobs fit the metric thread versions of the Celestron CPC 925 9¼" Schmidt-Cassegrain . . .
  10. Celestron Newtonian reflector collimating tool

    $39.95
    The Celestron Newtonian reflector collimating tool is a combination of a sight tube and a Cheshire eyepiece in a single unit. It has the precisely centered sighting hole and crosshairs of a sight tube, plus the cutout in the side of the tube containing the very precise 45° angle reflecting surface of a Cheshire . . .
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