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Nikon DSLR Cameras
D7100
Sensor over heating
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<blockquote data-quote="aroy" data-source="post: 336745" data-attributes="member: 16090"><p>That sensors heat up is a known fact. How much depends on</p><p>. Ambient temperature</p><p>. Length of exposure</p><p>. Heat transfer capacity of the body</p><p></p><p>In your case it could have happened. To reduce the load</p><p>. Shoot in RAW</p><p>. Switch noise reduction off</p><p>. Long exposure noise off</p><p>. Switch the display off</p><p>The reason is that all these functions load the CPU and increase the temperature. The noise reduction functions can be implemented in post processing. A better method is to take a "dark frame" after each shot - expose for the same time with lense cap on. Then use software to subtract the dark frame from the image frame.</p><p></p><p>The lower the sensor temperature the lower the noise. In Astronomy circles, noise is reduced by cooling the camera. It can be as simple as having a fan blowing air on the body to elaborate encasing of the body in a cooler. Astronomy cameras have provision for further cooling using electricity (peltier cooling <a href="http://en.wikipedia.org/wiki/Thermoelectric_effect" target="_blank">Thermoelectric effect - Wikipedia, the free encyclopedia</a>), or if the camera is designed for it cooling by liquid Nitrogen.</p></blockquote><p></p>
[QUOTE="aroy, post: 336745, member: 16090"] That sensors heat up is a known fact. How much depends on . Ambient temperature . Length of exposure . Heat transfer capacity of the body In your case it could have happened. To reduce the load . Shoot in RAW . Switch noise reduction off . Long exposure noise off . Switch the display off The reason is that all these functions load the CPU and increase the temperature. The noise reduction functions can be implemented in post processing. A better method is to take a "dark frame" after each shot - expose for the same time with lense cap on. Then use software to subtract the dark frame from the image frame. The lower the sensor temperature the lower the noise. In Astronomy circles, noise is reduced by cooling the camera. It can be as simple as having a fan blowing air on the body to elaborate encasing of the body in a cooler. Astronomy cameras have provision for further cooling using electricity (peltier cooling [URL="http://en.wikipedia.org/wiki/Thermoelectric_effect"]Thermoelectric effect - Wikipedia, the free encyclopedia[/URL]), or if the camera is designed for it cooling by liquid Nitrogen. [/QUOTE]
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Nikon DSLR Cameras
D7100
Sensor over heating
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