Interesting discussion - I agree that a proper analysis has to have the same fstop, lens, shutter speed, and mode (not electronic or electronic. Shooting at a lower shutter speed will give more hi-light headroom. [Noting that the effective iso does not match the dialled ISO in any event. The labels are close but not reliable, which may effect the test results.]
I don't care as much about dynamic range at iso 100 as dynamic range at iso 12k or 25k. They are all close.
At iso 100, which is typically landscape on a tripod or daytime, the dynamic range is controllable by shooting AEB and blending.
For wildlife I often get pushed to iso 12k or 25k ISO to keep my shutter speed up for shooting at near dark (dusk and dawn). I did some tests when I first got my r5ii and conclude that R5 had better noise at 12k iso and 25kISO, but that after using adobe AI enhance that they were hard to tell apart. Eg r5ii required more noise processing to get the same results at the same settings. You can search my username and for 25kiso in this forum to see the difference.
What r5ii does better is 30fps, variable fps, lessened bent backgrounds with panning, aeb in electronic, precapture clog2...) making the R5II better than r5 for most applications. However, the R5 has better noise at very high iso, way cheaper, performs better in the cold, does not need expensive new batteries, and is very good at a/f, fps, dynamic range, clog3 such that aside from BIF and Video usages they are pretty much the same. So buy what you can afford and figure out the strategy to manage dynamic range based on your sensor and if you are buying new, buy the R5, unless you are BIF or video focussed or have the money to have the best.
The d850, r5, and R5ii dynamic range are so close that other features are far more important like fps, clog2, buffer clear.
Nov 20, 2024 at 02:42 PM
Previous versions of Scott Stoness's message #16689760 « R5 Mk II has BETTER dynamic range than R5 »
