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Nikon DSLR Cameras
D850
issue with photo speed
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<blockquote data-quote="Chucktin" data-source="post: 683889" data-attributes="member: 44180"><p>Question: have you looked at the EXIF data to see what the camera setting were?</p><p>If you've set Aperature Priority with Auto ISO and you're getting 1/640 in all (most?) shots, what ISO does the EXIF data list?</p><p>It's not understood properly nor discussed extensively but ISO on a digital camera is not the response of a film emulsion to light (a chemical reaction) it's the sensitivity of the chip. There's usually a base sensitivity (for the chip) linked to a series of amplifiers that boosts that sensitivity. And when you boost (amplify) the base sensitivity you're also boosting the noise introduced by the amplifying circuitry.</p></blockquote><p></p>
[QUOTE="Chucktin, post: 683889, member: 44180"] Question: have you looked at the EXIF data to see what the camera setting were? If you've set Aperature Priority with Auto ISO and you're getting 1/640 in all (most?) shots, what ISO does the EXIF data list? It's not understood properly nor discussed extensively but ISO on a digital camera is not the response of a film emulsion to light (a chemical reaction) it's the sensitivity of the chip. There's usually a base sensitivity (for the chip) linked to a series of amplifiers that boosts that sensitivity. And when you boost (amplify) the base sensitivity you're also boosting the noise introduced by the amplifying circuitry. [/QUOTE]
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Nikon DSLR Cameras
D850
issue with photo speed
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