A number of people wrote in their reviews that it had a good lens. Ephotozine.com mentioned in their review of the Sony DSC-QX30 on expert review site Ephotozine “The Sony Cyber-shot QX30 is one of Sony's "Smart Lens" cameras, designed to be used with a smartphone” but they only gave the Sony DSC-QX30 a rating of 3 stars. Ephotozine.com also mentioned “It gives you an impressive 30x optical zoom lens, vastly improving the reach of your camera”. Techradar.com mentioned in their review “It looks like a giant add-on lens for your smartphone.”.
Several Sony DSC-QX30 owners who reviewed this digital camera mentioned that it had a good zoom. One customer said in their reviews that this digital camera had a good autofocus. In November last year Katia said in her review of the Sony DSC-QX30 “The focus is fast”.