High Quality Content by WIKIPEDIA articles! The Lumix DMC-L1 was Panasonic`s first digital single-lens reflex camera, and was announced in February 2006. This camera adheres to the Four Thirds System lens mount standard, making it the first non-Olympus Four Thirds camera, and thus confirming that the Four Thirds System is a semi-open standard such that compatible camera bodies can be built by different companies.