This is to approximate the following: have separate ISO options for RAW and JPEG, such that we can protect highlights and leverage iso invariance, while being able to chimp to check focus and composition.
As background, the issue is that LED stage lights can overexpose just one channel. For example, magenta lights will make the camera over expose the red pixels (of the raw file). Last few concerts, I decided it's fine to trust AF, not really be able to chimp, but leverage iso invariance and avoid over exposure.
So for lighting that would have required iso 1600+, I set iso to 400. Overall, it was a successful approach, but for some pictures it was almost impossible to check on the backscreen (yet after +2-3EV in pp the results were fine).
Next time I'm planning to use one of the JPEG modes set to maximum brightness, I can sacrifice portrait mode for example, and get brighter previews. If only the slider allowed more drastic adjustments. I'm wondering if anyone else has tried this
Alternatively, the firmware could have a jpeg option to always show what the camera thinks is correct exposure, but keep the raw files at a set iso.
Last edited by aaacb; 05-27-2018 at 06:51 AM.