There has been a lot of talk about ISO invariance of late, all of it sounding mighty complicated. Here’s a short simple explanation of what ISO invariance is, how it might effect the design of cameras in future and is this imperative information? Standby to be disappointed on that last item.
The photograph above, taken in 1972, stands to this day as one of the most influential images ever taken. It was also the photo that first catalysed my interest in photography.