wemrick1 wrote:Javier Hernandez wrote:wemrick1 wrote:ISO 100 = -12db. ISO doubles every 6db and the highest ISO is 25600 @ 36db.
So:
db ISO
-12=100
-6=200
0=400
+6=800
+12=1600
+18=3200
+24=6400
+30=12800
+36=25600
Natives are 0db and +18db
In theory yes but some reviewers are saying that 3200 is noisy. 1600 should be good. I believe the shift from primary to secondary ISO's happens between 1000 ISO and 1250 ISO.
Some reviewer don’t know what are doing…
Native iso / gain not mean miracle place where noise disappear, mean only analog gain applied. If you put 3200 iso with right light you not have noise, if you not give enough light you ever found noise, also in low light monster like Sony, disable noise reduction and you see everywhere noise.
Higher iso not mean more light mean more gain, low light mean low info, amplify low info mean you upper all info, noise for the first.
On every camera higher infos are when you cannot use / have more light, but not give you miracle. Miracle is from good denoise processor (in camera or in post). Blackmagic Design camera not have denoiser in camera (on broadcast should have it).
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