P+ ISO or "push" processing?

[Wayne Fox]

Here's an example I shot after hearing about this.

Side by side, only difference is ISO setting

Underexposed shot has a 2.4 stop adjustment in C1, no other changes

100% view of a section (note some leaf blurring difference is due to movement from the breeze) Note there is no visual difference in noise.

Here are the 2 histograms compared after the adjustment, with the original 35ISO histo as well. Notice how it looks like shadows are completely clipped yet after adjustment the 2 are almost identical.

Here's the original LuLa discussion about it
ISO metadata and ETTR

 

[ondebanks]

Here's the original LuLa discussion about it
ISO metadata and ETTR

That was a good thread...I was glad to have played a part in it (2nd post).

Nice tests you've shown here too. I have done something similar, verifying that ISO on my CCD systems is just a flag for image review and RAW conversion.

Ray