Founded by William Yang, William Optics headquarters are located in Taiwan.

In a relatively short time, William Optics has established itself and its products as one of the world leaders in short-tube, highly-portable refractors, and has achieved quality recognition for many accessories such as the well celebrated WO Diagonals.

Far from limiting ourselves to astronomy, in accordance to the founders’ passion for nature in all its aspects, we will increase our efforts to produce superior products for the bird-watching enthusiast and the casual observer alike.

Our reputation for high-end but affordable telescopes and accessories has been expanding constantly on the five continents. There are now few countries where a serious stargazer cannot appreciate the optical and mechanical excellence of William Optics.

We are totally focused on offering you premium optics paired with unrivalled mechanics, all for an outstanding final value!

Warranty Information

The WILLIAM OPTICS CORP. Product Warranty applies only to the original buyer in possession of the original proof of purchase. Additional warranties from your dealer may apply, but they are beyond William Optics Corp.’s obligations.

WO warrants its products to be free from defects in materials and workmanship from the date of purchase, or from the invoice shipment date (the warranty period).

For a period of TWO YEARS (check each product for further details or longer warranty periods) from the date of original retail purchase, WO will repair or replace a defective product provided it is returned to WO freight prepaid, with proof of purchase. The warranty applies to the opto-mechanical assembly, and any part or accessory provided with our standard instruments unless otherwise specified. During the warranty period, William Optics will repair or replace based on individual cases a defective product or part of it provided it is returned to WO freight prepaid, with proof of purchase. William Optics will decide whether to be deemed responsible for the defect or to charge the customer.

 This warranty is not valid in cases where the product has been misused, mishandled, where unauthorized repairs have been performed without our written authorization, or where depreciation of the product is due to normal wear-and-tear.