According to the RS Components page [0] it appears to be fixed focus.<p>[0] <a href="http:&#x2F;&#x2F;uk.rs-online.com&#x2F;web&#x2F;generalDisplay.html?id=raspberrypi" rel="nofollow">http:&#x2F;&#x2F;uk.rs-online.com&#x2F;web&#x2F;generalDisplay.html?id=raspberry...</a>