Sony RX100 in Alamy Quality Control and technical talk Posted April 21 4 minutes ago, Matt Ashmore said: To add a follow-on question.. how far do people push the ISO when using their RX100? With a smaller sensor, noise is always going to be something it struggles with compared to something with a larger sensor. Personally, I don't like pushing my mark 3 much past 320 or 400 as I find the noise can become too difficult to handle much past that. The RX100 series has a one inch sensor, but the image quality is on a par with my A6000. They all have a Sony/Zeiss lens with built in lens correction. I find that going up to ISO800 is very possible. Now, I use RAW and Adobe RAW converter. That enables me to control luminance and sharpness on the full original 16 bit image. Just a careful choice of Luminance and sharpness for an acceptable end result.