Jemini wrote: Holger wrote: Jemini wrote: Holger wrote:
DPreview image analysis - Almost no penalty in DR or IQ with ES vs. MS. Fantastic
A1:
- JPEGs retain very high levels of detail at both low and high ISOs
- Noise reduction strikes a slightly different balance compared to the a7R IV, opting to reduce more luminance noise at the slight cost of fine detail as light levels drop
- Colors are improved: richer yellows, less magenta-tainted blues, warmer greens
- Class-leading Raw dynamic range compared to professional action / sports cameras
- Almost class-leading dynamic range compared to high-resolution full-frame peers
- ISO invariant over two ranges: 100-400, 500-102,400
"Despite being built to have absolutely insane readout speed, which often comes at a noise cost, the Sony a1 performs similarly well to the Canon EOS R5 at higher ISO values, and comes in a bit behind the Nikon Z7 II and a little ahead of Panasonic's Lumix DC-S1R."
I said earlier in the thread that it looks slightly worse than D850/D500. People didn't agree with me that broke my heart
I still don't agree. The D850 looks worse than Z7ii on Dpreviews Studio Scene at higher iso (see link below). Then, if you compare A1 to D850 PDR, the A1 is measurably better than D850 and on par to the D500 (at high iso) in APSC mode:
I'm not sure what dpr is doing. I will use the tool to get the best for the camera. I downloaded RAW files from DPR. A1 file was converted in Edit with Neutral picture style, NR set to off. I also made sure all settings are off. Nikon file was converted in capture NX. Again neutral pic style and NR turned off. Resized A1 crop to match 850. This is what I'm getting. When ACR support Sony file I will get a better comparison. I'm not saying I'm doing everything right. I will be happy to be wrong and get better result from A1.
Of course top is 850 and bottom A1
You clearly see a difference in acuity and detail in the A1 file compared to the D850 files, which looks softer. So you have additional leeway to process the A1 files (in case the raw converter supports the raw format appropriately).
Bill Claff measurments are objective and show a small but measurable advantage of the A1 (surprisingly given the stacked sensor architecture), too.
Additionally, looking at the measurements, I don't see the big difference to the A7siii or A7sii either in PDR https://www.photonstophotos.net/Charts/PDR.htm#Sony%20ILCE-1,Sony%20ILCE-7SM2,Sony%20ILCE-7SM3
The A7siiii will probably be better at super high isos, nobody will use in realty anyway (but then again, downsizing and accounting for the AA filter you can get both very close).
