Panasonic has unveiled the Lumix ZS300, a successor to the Lumix ZS200 announced back in early 2018. Like its predecessor, the ZS300, also known as the TZ300, combines a 15x optical zoom lens and a 20.1-megapixel Type 1 CMOS image sensor inside a compact, pocket-sized body. However, it also features a major downgrade in user experience.