EXCERPT page containing first few paragraphs. 2019-10-20 15:38:41
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This ISO series evaluates noise from ISO 64 through ISO 25600 using a near-optimal exposure.
- At which ISO does image detail begin to be significantly lost?
- At which ISO do dark areas begin to be too overlaid with noise?
- What is the highest ISO that is acceptable?
Creek to Pines to Mountain Peaks
Adobe Camera Raw 18.104.22.1680. View ACR Settings. No noise reduction used.
All frames had exposures with 1/2 or 2/3 stop of maximum as per the RawDigger histogram (higher ISOs dropped off by about 1/6 stop versus lower ISO values, this is not significant). In other words, these are near-optimal ETTR exposures at every ISO.
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