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<blockquote data-quote="BackdoorArts" data-source="post: 110930" data-attributes="member: 9240"><p>The Long Exposure NR on cameras is meant to deal with this issue and is likely what the book is referring to, at least in part.&nbsp; After the sensor has been exposed to light - any light - for more than 30 seconds, it's possible that the sensor will get &quot;hot pixels&quot; due to it &quot;overheating&quot;.&nbsp; In other words, it will produce noise in the image due to sensor heating.&nbsp; The longer the exposure, the more likely it is that the sensor will produce these spots.&nbsp; Prolonged exposure could likely damage the sensor, particularly in harsh light, which is why Nikon instituted certain limits like the 20 minute video limit mentioned above.&nbsp; I suspect the book is just explaining what this is more than providing the user with a warning about sensor damage, but there is certainly that risk.&nbsp; So don't go shooting a 2 minute exposure of the sun in full daylight just for kicks, for you may reap what you sow. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink&nbsp; &nbsp; ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>

[QUOTE="BackdoorArts, post: 110930, member: 9240"] The Long Exposure NR on cameras is meant to deal with this issue and is likely what the book is referring to, at least in part. After the sensor has been exposed to light - any light - for more than 30 seconds, it's possible that the sensor will get "hot pixels" due to it "overheating". In other words, it will produce noise in the image due to sensor heating. The longer the exposure, the more likely it is that the sensor will produce these spots. Prolonged exposure could likely damage the sensor, particularly in harsh light, which is why Nikon instituted certain limits like the 20 minute video limit mentioned above. I suspect the book is just explaining what this is more than providing the user with a warning about sensor damage, but there is certainly that risk. So don't go shooting a 2 minute exposure of the sun in full daylight just for kicks, for you may reap what you sow. ;) [/QUOTE]

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