If warranty problems arise, or if you need assistance in using your product, contact directly Astronomy Plus. Astronomy Plus will provide assistance in dealing with the manufacturer. For the most updated description of the warranty, go check on the manufacturer website. The warranty on the manufacturer website prevail on the one described here, which is only indicative and that might change without prior notice.
OSI includes products made by Astrodon, Farpoint, Lumicon, JMI, and OWL. All OSI products come with a 1-year warranty for replacement of any manufacturing defect.