Nikkei published their latest digital camera global market share for 2020. Here is the breakdown of the top five brands:
Canon, Sony, and Nikon together held a global market share of over 80% for digital cameras. The market as a whole has been shrinking due to the spread of smartphones. In 2020 specifically the market shrank by about 40% because of COVID-19: total shipments: 8.85 million units representing a drop of -40.3% (via Digicame-info).