Contact Dianfan
Dianfan telescopes are sold exclusively on Amazon, so every order, warranty claim, and support question is handled directly inside your Amazon account - usually within a day.
Product support
Missing parts, setup questions, or something not working right? Open your Amazon order and use Your Orders → Get product support. The Dianfan team responds there with your full order already attached.
Go to your Amazon orderReturns & warranty
Dianfan warranty coverage is described in the documentation supplied with the telescope. Retailer return windows and replacement procedures are separate; check the order where you bought the instrument.
Company address
Dianfan1540 Market St #103
San Francisco, CA 94102
United States
Business hours
Monday - Friday, 9 AM - 5 PM PDT
Closed on US federal holidays.