What is the fine-grained topic of the following text: Billed as the company's smallest and lightest compact camera with a retractable, interchangeable lens, the GF3X carries over all of the goodies from the GF3, including a 12.1 megapixel MOS image sensor, a 3.0-inch touchscreen LCD, and 1080i HD video recording. Only return the topic.
GF3X Compact Camera Features