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https://www.sonyalpharumors.com/early-estimated-a7rm3-dr-range-phot...
Early estimated A7rm3 DR range from Photons to Photos sees no improvement over a7rm2
Photonstophotos.net posted this chart based on estimated (Not actual measured¡±) Dynamic Range. I saw in the past that those estimations can be very off. So I wouldn¡¯t read too much into it. Som why did I post this now? because this chart being shown on many website and I wanted to make it clear that is yet NOT the measured Dynamic Range.
Sony said that at low ISO the new A7rIII will be around 1 stop better than the A7rII. The chart above shows no such improvements. But my bet is on Sony and that actual measurements will show this improvement at Low ISO.
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https://photo.popco.net/58191