Is this normal? Hot pixels/noise in particular zone

Started 5 months ago | Questions
Spirograph1109 New Member • Posts: 8
Is this normal? Hot pixels/noise in particular zone
1

Hello,

I recently shot some hot pixel test shots on a new X-T4.

Is this normal? there is a rectangular zone in the bottom right part which has significantly more noise and hot pixels.

Could it be that behind that zone there is something hot on the pcb or something?

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zerored Regular Member • Posts: 300
Re: Is this normal? Hot pixels/noise in particular zone

Recommend you post your question on the Fujifilm X System/SLR forum.

As a Canon user I map out hot pixels by doing a manual sensor clean for 60 seconds without actually cleaning the sensor.  I leave the lens on my Canon DSLR.  I also make certain the battery is fully charged.  Don't know if such works on Fujifilm cameras.

Mark Scott Abeln
Mark Scott Abeln Forum Pro • Posts: 16,363
Try this
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OP Spirograph1109 New Member • Posts: 8
Re: Try this

Mark Scott Abeln wrote:

http://fujifilm-dsc.com/en/manual/x-t4/menu_shooting/image_quality_setting/index.html#pixel_mapping

already mapped the pixels before. those hot pixels don't appear "cold"

alcelc
alcelc Forum Pro • Posts: 14,631
Re: Try this

Spirograph1109 wrote:

Mark Scott Abeln wrote:

http://fujifilm-dsc.com/en/manual/x-t4/menu_shooting/image_quality_setting/index.html#pixel_mapping

already mapped the pixels before. those hot pixels don't appear "cold"

The general idea of Pixel Mapping is to ask the camera to look for dead pixel and map them out for future usage (to mark the location of those dead one).

Hot pixel is generally caused by heating up of the sensor. It is not a dead pixel. Most of the time hot pixel will return normal after cooling down. Therefore, Pixel Mapping won't deal with them.

If hot pixels appearing under non long exposure shots, or reappearing on same location, that could be a dead pixel instead and it would need Pixel Mapping to deal with them.

Therefore to your question, would you see similar hot pixel under a 1/60" dark frame shot?

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Albert
** Please feel free to download the original image I posted here and edit it as you like **

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