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the accuracy could be improved easily if multi-stars is aligned as the oriental reference in our app
or putting Dobsonian base on uneven ground)
Basic Manual for Focuser Adjustment & Optical Alignment
Because of the GSO coma corrector extends extra 4" focal length
In seconds
GSO 1.25" Polarizing Filter the accuracy could be improvedGSO polarizing filter features a standard 1. 25" male filter thread (M28. 5x0. 6) to fit most popular 1. 25" eyepieces. The filter comes in a protective plastic storage box. Shipping & Discounts: shipping & discounts is available if you order multiple quantities items.
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US$ 12.00
US$ 15.99
