Much worse.
It depends on the type of photography you do. For sports and birds where the motion is horizontal or vertical, it sucks.
I'm not a macro expert at all, But I use electronic shutter a lot for macro with moving subjects and when I move back and forth to acquire focus in MF, and I never see visible deformations.
Bit depth is good for eking out the most for DR and color graduations. Someone pointed out for me, the 12 bit capture on the R5 limits the shadow recovery ability. Also it could (but not guaranteed) be more prone to banding than a 14 bit capture, but that is a little more involved and better explained by someone with a better understanding.
I use the R5 with electronic shutter after initially staying away from it after hearing of all other the archair theretical discussion. I have found Electronic Shutter/12 bit is on R5 to be nonexistent and never occuring in the way I shoot during my first 50,000 images with R5. I was shocked with excellent real world results after hearing nothing but trash talk and theortical mumbo jumbo coverage that rolling/12 bits gets on the forums. Try it. I think if your results like mine then you will like it at least on the R5. I have nevers touched an R6 which may be worse, but do not listen to the naysayers, pixel peepers and spec jockeys. "Trust but verify" with data from actual hands on experience.
moving subjects ? insects? then that's a no go with Sony A7III and E shutter, stationary subjets is another thing.
Thanks everyone, a great discussion. I'd never thought about ES as means if improving HH shots. I had great success with the EM1.II, but, stuck with the D750, better overall IQ, but, not by much.
Not all bird photography involves much motion. I use ES on perched birds and you'd never know the difference. Also, I'm not convinced lots of dynamic range is necessary on most of the images I get in macro. Finally, is DR a function of bit depth in an image?
You got a reference on bit depth and dynamic range? I am asking because I recent something recently (I cannot remember where) that said that bit depth doesn't impact dynamic range, but it does impact color gradations. The dynamic range has more to do with ADC going on from the sensor. Can you comment on this?
It cannot be the only factor, because cameras with the same no. of bits in their images have different DR, but, it determines the max possible range because the no. of bits determines the range of signal voltage that can be encoded. 12 bits is 0 to 2**12 i.e 0 to 4096, 14 bits is 0- 2**14 , i.e. 0 to 16384,16 bits 0 to 2 **16 , i.e. 65536.
There is this "DYNAMIC RANGE IN DIGITAL PHOTOGRAPHY"
