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Eyepieces

The specifications of a telescope are NOT the only specs that matter. The other half of the equation is the specifications of the eyepiece. Telescope eyepieces are made in different models and sizes to accommodate different observing methods and celestial objects. For example, understanding the focal length of your optical tube divided by the focal length of your eyepiece will result in magnification, which in return can tell you whether it is more suitable for deep space low surface brightness observation or planetary/terrestrial high surface brightness observation. For example, if you wanted to observe an object such as the Andromeda Galaxy with a large apparent diameter, an eyepiece with a long focal length and large apparent field of view would excel over an eyepiece with a shorter focal length and small apparent field of view because it would be able to accommodate the size of the object at low magnification and high FOV while not getting dimmer images as you would with short focal lengths. If you plan on observing planets, a short focal length eyepiece with a small FOV will result in high magnification to observe details on the surface (eg. Great Red Spot). You'll get a dimmer image, but since planets are already bright as it is, this won't be an issue. - Note: Almost all eyepieces come in 2" or 1.25" barrel size forms.

 


Telescope Focal Length

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  1. Lumicon - 12.5mm Orthoscopic Eyepiece with Illuminated Reticule

    Lumicon - 12.5mm Orthoscopic Eyepiece with Illuminated Reticule

    The Lumicon 12.5mm Orthoscopic Eyepiece with Illuminated Reticule is a state-of-the-art guiding eyepiece, featuring rheostat brightness control and on/off switch.

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    Model#: LG1090
    $164.95

  2. Lumicon - Pulseguide Illuminator

    Lumicon - Pulseguide Illuminator

    The Pulseguide Illuminator is a replacement illuminator for the Lumicon 12.5mm Illuminated Reticle Eyepiece.

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    Model#: LG1095
    $54.95

  3. Meade - MA 12mm Illuminated Reticle Eyepiece - with cord(1.25")

    Meade - MA 12mm Illuminated Reticle Eyepiece - with cord(1.25")

    Exellent 3-element optical system, long eye relief, fully coated, with double crossline reticle; rubber eyecup. With 6 ft. cord and plug for Meade telescopes with power panels for red LED illuminator and variable brightness control ... Learn More
    Model#: 07065
    $69.00

  4. Meade - MA 12mm Illuminated Reticle Eyepiece - wireless (1.25")

    Meade - MA 12mm Illuminated Reticle Eyepiece - wireless (1.25")

    Exellent 3-element optical system, long eye relief, fully coated, with double crossline reticle; rubber eyecup. Wireless red LED illuminator and variable brightness control. Batteries included ... Learn More
    Model#: 07066
    $58.95

  5. Meade - 9mm Plossl Illuminated Reticle Eyepiece - with cord(1.25")

    Meade - 9mm Plossl Illuminated Reticle Eyepiece - with cord(1.25")

    Series 4000 Plossl 9mm - With 6ft. cord and plug for Meade LX3, LX5, LX6, LX100, LX200, and APO power panels, in place of wireless illuminator ... Learn More
    Model#: 07067
    $69.00

  6. Meade - 9mm Plossl Illuminated Reticle Eyepiece - wireless(1.25")

    Meade - 9mm Plossl Illuminated Reticle Eyepiece - wireless(1.25")

    Series 4000 Plossl 9mm - With wireless illuminator for Meade LX3, LX5, LX6, LX100, LX200, and APO power panels ... Learn More
    Model#: 07068
    $58.95

  7. Meade - MA 12mm Illuminated Reticle Astrometric Eyepiece - wireless (1.25")

    Meade - MA 12mm Illuminated Reticle Astrometric Eyepiece - wireless (1.25")

    A high-precision eyepiece for a wide range of astronomical measurements ... Learn More
    Model#: 07069
    $78.95

  8. Meade - 25mm Plossl Illuminated Reticle CCD Framing Ocular Eyepiece - wireless (1.25")

    Meade - 25mm Plossl Illuminated Reticle CCD Framing Ocular Eyepiece - wireless (1.25")

    Displays rectangular frames of all popular CCD chip sizes, including all Meade Pictor models and ST-4 through ST-8. Shows precisely the image size and orientation that appear on telescope eyepiece-holder, or use with Flip-Mirror.

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    Model#: 07568
    $129.00

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