Astro-Tech

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  1. 114mm i.d. Astro-Tech tube rings, pair

    $99.95
    These mounting rings fit refractors such as the current AT115EDT, Takahashi TSA-102, William Optics FL-105, plus any other scope with a 114mm OD tube . . .
  2. 125mm finder/photoguide ring set for use on Losmandy-style "D-plate" dovetail, Green Rings black base

    $95.00
    This Astro-Tech 125mm guidescope ring set mounts a refractor up to 115mm o.d. on an optional Losmandy-style "D-plate" dovetail that has been piggybacked on your main scope so that the small refractor can be used as a finderscope, photoguide, or astrograph . . .
  3. 2" To 1.25" accessory adapter

    $24.95
    This Astro-Tech 2" to 1.25" eyepiece adapter lets you use 1.25" accessories in a 2" focuser or star diagonal . . .
  4. Astro-Tech #12 Medium yellow 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    This #12 medium yellow Astro-Tech 1.25" eyepiece filter is helpful in improving lunar and Martian contrast in telescopes 4" to 8" in aperture, particularly if combined with a polarizing or neutral density filter when used with the larger apertures . . .
  5. Astro-Tech #21 Orange 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    This #21 orange Astro-Tech 1.25" eyepiece filter is useful in improving contrast when observing the Moon and all planets out to Saturn in telescopes 6" to 8" in aperture and larger, particularly if combined with a polarizing or neutral density filter . . .
  6. Astro-Tech #23A Light red 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    This #23A light red Astro-Tech 1.25" eyepiece filter is useful when observing Mercury and Venus during the day and at twilight and when observing Mars, Jupiter, and Saturn with telescopes 4" in aperture and larger . . .
  7. Astro-Tech #29 Dark red 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    If you have a big scope (10" in aperture and larger), this #29 dark red Astro-Tech 1.25" eyepiece filter can be useful when observing Mercury and Venus during the day and at twilight and when observing Mars, Jupiter, and Saturn . . .
  8. Astro-Tech #38A Dark blue 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    If you have a big scope (10" in aperture and larger), this #38A dark blue Astro-Tech 1.25" eyepiece filter can be useful when observing Jupiter's belts and features on Mars during periods of violet clearing . . .
  9. Astro-Tech #47 Violet 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    If you have a big scope (8" in aperture and larger), this Astro-Tech #47 violet 1.25" eyepiece filter can help detect high clouds and haze over the Martian polar caps and enhance structure in Saturn's rings . . .
  10. Astro-Tech #56 Light green 1.25" color filter

    Regular Price: $11.95

    Special Price $8.95

    If you have a scope 6" in aperture and under, this Astro-Tech #56 light green 1.25" eyepiece filter is a useful tool for observing different features on every planet from Venus to Saturn . . .
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