> In order to practically implement this we first close the shutter. Fun fact, Sony does the same once in a while for dead-pixel detection and remapping on the

> In order to practically implement this we first close the shutter. Fun fact, Sony does the same once in a while for dead-pixel detection and remapping on their mirrorless cameras [1]. [1] https://news.ycombinator.com/item?id=38579634 https://news.ycombinator.com/item?id=38579634