Thinkcamera has a review out on the Sony cyber-shot DSC-T9 where they write 'In common with those other models, the distinguishing feature is the ingenious zoom lens design, which means there's no protrusion at the front of the camera, allowing a slim, sleek design with an integral sliding lens cover. The major improvements over the T5 and T7 are better resolution, anti-blur features and better memory and battery life, in return for a small increase in size and weight.'