ruthenium wrote:
Re @Frogfish@, in your consideration
"DYNAMIC RANGE
Not that anyone can actually see that on a 4k monitor anyway (and most have lower res. than 4k)! Current Rec.709 displays are really only designed to output between 7 and 9 stops of dynamic range. HDR displays can now show 10-14 stops of dynamic range. UHD is 13 stops. sRGB being an 8-bit space, limits the displayable dynamic range to 8 stops (and this is what the VAST majority of people view at and what printers generally want the files delivered in). Adobe RGB, has a dynamic range of around 10 stops.
The OM1 has a DR of 13.4 stops. OM-3 is 13.7 stops. Sony A7Cii & A7r5 have 15 stops . Nikon Z8 has 14.3 stops. Canon R8 has 14.7 stops."
You conflate the dynamic range with the color depth. This is confusing at best.
For the dynamic range, the commonly used numbers are for the Photographic Dynamic Range (from photonstophotos) and not the Engineering Dynamic Range. Your numbers, like 13.4 for OM-1 look like the EDR. I don't know where you have taken the numbers. Furthermore, the dynamic range (one way or another) is not a constant. It depends on the exposure; thus the numbers are reported with the corresponding ISO.
The importance of dynamic range in photography is not about how the processed images should look on a display. The dynamic range tells how much image one can recover from the shadows while processing the raw data.
I think you better take it up with the manufacturers then (because that's where I researched the figures) ! All do the same - give you their best DR figures which are of course at the base ISO
ruthenium wrote:
Re @Frogfish@, in your consideration
"DYNAMIC RANGE
Not that anyone can actually see that on a 4k monitor anyway (and most have lower res. than 4k)! Current Rec.709 displays are really only designed to output between 7 and 9 stops of dynamic range. HDR displays can now show 10-14 stops of dynamic range. UHD is 13 stops. sRGB being an 8-bit space, limits the displayable dynamic range to 8 stops (and this is what the VAST majority of people view at and what printers generally want the files delivered in). Adobe RGB, has a dynamic range of around 10 stops.
The OM1 has a DR of 13.4 stops. OM-3 is 13.7 stops. Sony A7Cii & A7r5 have 15 stops . Nikon Z8 has 14.3 stops. Canon R8 has 14.7 stops."
You conflate the dynamic range with the color depth. This is confusing at best.
For the dynamic range, the commonly used numbers are for the Photographic Dynamic Range (from photonstophotos) and not the Engineering Dynamic Range. Your numbers, like 13.4 for OM-1 look like the EDR. I don't know where you have taken the numbers. Furthermore, the dynamic range (one way or another) is not a constant. It depends on the exposure; thus the numbers are reported with the corresponding ISO.
The importance of dynamic range in photography is not about how the processed images should look on a display. The dynamic range tells how much image one can recover from the shadows while processing the raw data.
I think you better take it up with the manufacturers then !
Aug 06, 2025 at 11:49 AM
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