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General Photography
Balancing Exposure and Processing
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<blockquote data-quote="J-see" data-source="post: 407013" data-attributes="member: 31330"><p>Here's how ISO affects my cam at certain aspects of its quality. ISO does not <em>just add some noise </em>as some might believe. This is true for every cam once you increase ISO. The numbers or % loss of yours is not necessarily identical to mine.</p><p></p><p><u><strong></strong></u></p><p><u><strong>ISO 100</strong></u></p><p>SNR 18%: 44,9dB</p><p>Dynamic range: 14,53Ev</p><p>Tonal range: 9,59 bits</p><p>Color sensitivity: 24,8 bits</p><p></p><p><u><strong>ISO 200</strong></u></p><p>SNR 18%: 42dB</p><p>Dynamic range: 13,73Ev</p><p>Tonal range: 9,09 bits</p><p>Color sensitivity: 24 bits</p><p></p><p><u><strong>ISO 400</strong></u></p><p>SNR 18%: 39,5dB</p><p>Dynamic range: 12,86Ev</p><p>Tonal range: 8,7 bits</p><p>Color sensitivity: 23,1 bits</p><p></p><p><u><strong>ISO 800</strong></u></p><p>SNR 18%: 36,8dB</p><p>Dynamic range: 12,1Ev</p><p>Tonal range: 8,27 bits</p><p>Color sensitivity: 21,7 bits</p><p></p><p><u><strong>ISO 1600</strong></u></p><p>SNR 18%: 34dB</p><p>Dynamic range: 11,17Ev</p><p>Tonal range: 7,81 bits</p><p>Color sensitivity: 20,2 bits</p><p></p><p><u><strong>ISO 3200</strong></u></p><p>SNR 18%: 31dB</p><p>Dynamic range: 10,39Ev</p><p>Tonal range: 7,32 bits</p><p>Color sensitivity: 18,7 bits</p><p></p><p><u><strong>ISO 6400</strong></u></p><p>SNR 18%: 27,9dB</p><p>Dynamic range: 9,47Ev</p><p>Tonal range: 6,8 bits</p><p>Color sensitivity: 17,2 bits</p><p></p><p>When shooting my ISOless style, it is also good to remember I shoot RAW 14bit lossless. In how much this makes a difference with 12bit I don't know.</p></blockquote><p></p>
[QUOTE="J-see, post: 407013, member: 31330"] Here's how ISO affects my cam at certain aspects of its quality. ISO does not [I]just add some noise [/I]as some might believe. This is true for every cam once you increase ISO. The numbers or % loss of yours is not necessarily identical to mine. [U][B] ISO 100[/B][/U] SNR 18%: 44,9dB Dynamic range: 14,53Ev Tonal range: 9,59 bits Color sensitivity: 24,8 bits [U][B]ISO 200[/B][/U] SNR 18%: 42dB Dynamic range: 13,73Ev Tonal range: 9,09 bits Color sensitivity: 24 bits [U][B]ISO 400[/B][/U] SNR 18%: 39,5dB Dynamic range: 12,86Ev Tonal range: 8,7 bits Color sensitivity: 23,1 bits [U][B]ISO 800[/B][/U] SNR 18%: 36,8dB Dynamic range: 12,1Ev Tonal range: 8,27 bits Color sensitivity: 21,7 bits [U][B]ISO 1600[/B][/U] SNR 18%: 34dB Dynamic range: 11,17Ev Tonal range: 7,81 bits Color sensitivity: 20,2 bits [U][B]ISO 3200[/B][/U] SNR 18%: 31dB Dynamic range: 10,39Ev Tonal range: 7,32 bits Color sensitivity: 18,7 bits [U][B]ISO 6400[/B][/U] SNR 18%: 27,9dB Dynamic range: 9,47Ev Tonal range: 6,8 bits Color sensitivity: 17,2 bits When shooting my ISOless style, it is also good to remember I shoot RAW 14bit lossless. In how much this makes a difference with 12bit I don't know. [/QUOTE]
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