The William Optics Zenith 73 III is a two-element APO refractor.  The FPL-53 glass used by this telescope provides excellent aberration correction.

Soft carry case is included in the standard package

e Soft carry case is included in the standard package

Focal Length 430mm
Aperture 73mm
Focal ratio f/5.9
Camera Format Up to Full Frame
Focuser 2″ Rack and Pinion (compatible with ZWO EAF)
Recommended Flattener FLAT 73A 1.0x, FLAT73R 0.8x
TubeLength (Retracted) 330mm
TubeLength (Extended) 420mm
OTA Weight 2.83kg

Attaching the flattener

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Optional Products

William Optics ZenithStar 73 III APO Refractor Telescope

SKU: N/A

$1,349.00

✅ Expert Advice
✅ Australian Owned
✅ Lifetime Technical Support

    Need Expert Advice?

    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

    Enquire now or call us (03) 9042 2293

    William Optics ZenithStar 73 III APO Refractor Telescope

    SKU: N/A

    $1,349.00

    The William Optics Zenith 73 III is a two-element APO refractor.  The FPL-53 glass used by this telescope provides excellent aberration correction.

    Soft carry case is included in the standard package

    e Soft carry case is included in the standard package

    Focal Length 430mm
    Aperture 73mm
    Focal ratio f/5.9
    Camera Format Up to Full Frame
    Focuser 2″ Rack and Pinion (compatible with ZWO EAF)
    Recommended Flattener FLAT 73A 1.0x, FLAT73R 0.8x
    TubeLength (Retracted) 330mm
    TubeLength (Extended) 420mm
    OTA Weight 2.83kg

    Attaching the flattener

    Reviews

    There are no reviews yet.

    Be the first to review “William Optics ZenithStar 73 III APO Refractor Telescope”

    Your email address will not be published. Required fields are marked *

    Optional Products

      Need Expert Advice?

      Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

      Enquire now or call us (03) 9042 2293