Place all of those pixels together along with the picture.
By the mid-2000s digital cameras had replaced film cameras the even cell phonescame with inbuilt digital camera. Any wildlife photographer would be carrying digital SLR with zoom lenses of different sizes depending for the requirement. They are derived from different brands but what issues most is you know what options you desire and the rate you can pay for.
Below is really a table which illustrates the number of megapixels you would need to print an ordinary sized image at optimal PPI compared to how many you would need printing at 200 PPI.