We’ve come a long way in the world of photography. The photo above is the first known permanent photograph.
The photo was captured by a camera obscura focused onto a sheet of 20 × 25 cm oil-treated bitumen. Due to the 8-hour exposure, the buildings are illuminated by the sun from both right and left.
An 8-hour exposure! Now we take photos with an exposure time of under 1/60th of a second or faster and we can see the results immediately.