You might have heard of the term "native ISO" before and wondered what it refers to. This excellent video discusses the topic and what it means for your cameras.
Coming to you from ProAV TV, this great video dives into the topic of native ISO. Back in the film days, ISO referred directly to the film's sensitivity. In other words, when you put film with a different ISO in your camera, you were directly changing the sensitivity of the medium. On the other hand, in the digital era, ISO is a bit more complicated. A digital sensor generally has only one sensitivity level (dual native ISO cameras are another topic), for which the term "native ISO" designates the ISO speed at which a full well gives a maximum signal. In other words, you can think of native ISO roughly as the highest ISO at which a post-sensor gain is not applied to the signal. Whereas you can actually change the ISO in a film camera by changing the film itself, changing the ISO in a digital camera roughly equates to changing the gain applied to the signal coming from the sensor. Check out the video above for the full rundown.