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William Optics
Guide Star 61
williamoptics.com/.../guide-star-61
Type
Refractor: apochromatic
Diameter
61 mm
Focal length
360 mm
Weight
1.40 kg
Users
75
Images
776
Most often used with
iOptron
SkyGuider Pro
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Known retailers
Agena Astro
·
High Point Scientific
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