Optolong’s goal is that you are completely satisfied with our quality, delivery and price. All of our optical filters are rigorously inspected and tested to the highest standards (MIL-STD).
Return Policy:
Optolong Optics requires the buyer to provide proof of product defect and the contract order number within 60 days of receipt of the product, and upon receipt of the returned product, we can refund or replace it according to your needs.
Warranty Information:
Optolong’ warranty for all optical filters includes a three years guarantee：
Free technical support, and we will respond within 48 hours.
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