Harry Caul
Well-known
They did add a gimmick that I'm not sure about...new mode which is essentially the Olympus gimmick they put on the pen-f and em5mk2 using multiple shots from single shutter release to create a bigger raw file (emulating a bigger sensor). But this indicates if nothing else, they solved a lot of throughput bottlenecks in their digital path.
Sorry, but I can't stand it when people label features they do not need to be "gimmicks" 🙄
Multi-shot photography has been used on specialty science and industrial sensors for years and is invaluable. To better understand the performance gains go over to DxOMark and look at their 1" sensor DxO One camera.
DxO One score = 70
DxO One "super raw" multi-shot score = 85 (21% improvement!)
To put that into perspective:
Sony A6000 = 82
Nikon D5500 = 84
Sony A7SII = 85
Canon 5DS R = 86
So basically you are getting high-end APS-C/mid-range FF performance out of a 1" sensor.
Sure, not everyone shoots still life and/or architecture, but those folks will see amazing gains in performance with multi-shot cameras. You can also use it as a built-in ND filter to blur water in pinch as well. Given that the Sigma's are already known for their amazing perceived sharpness vis-a-vis their megapixel designation, I for one am super excited to see how much more performance they can eke out.
Sure, street shooters, and wedding/portrait photographers will likely never use it. But just because I don't need 4K or 7 million AF points, that doesn't make those features gimmicks.
By the way, I'm speaking from experience here... I document a lot of art including prints. Camera resolutions are so high these days that moire and color artifacts from the print patterns were a constant struggle with every camera I tried. I was looking at $2-3-4,000 solutions but nothing worked reliably. Then the Oly EM5 mkII w/multi-shot came along and solved all my problems for <$1,000!