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
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 |
$179.00 – $195.00
$1,349.00
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 |
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$179.00 – $195.00
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