All cameras have a shutter mechanism to expose the sensor for exactly the right amount of time. The shutter opens to begin the exposure and then closes again to end it. Most cameras have mechanical shutters, though you can also get electronic shutters, which we’ll come to a little later. Mechanical shutters come in two […]
This is the part of a focal plane sensor, as used in DSLRs and mirrorless cameras, that covers the sensor at the end of the exposure. The exposure starts when the first curtain uncovers the sensor, and ends when the second curtain covers it again.