Defective Pixels

[m_k31]

<p>brand new, right out of the box, Fuji X Pro 1. this aberration is in the exact same spot on many of the photos but not every single one. is this a dead pixel? hot pixel? stuck pixel? what is it and what causes it?<br>

should i return the camera?<br>

<img src="http://transit2.cargocollective.com/1/2/83304/3893566/Screen%20Shot%202014-01-02%20at%2010.34.23%20PM_2048.jpg" alt="" /></p>

<p><img src="http://transit2.cargocollective.com/1/2/83304/3893566/Screen%20Shot%202014-01-02%20at%2010.35.00%20PM_2048.jpg" alt="" /></p>

<p><img src="http://transit2.cargocollective.com/1/2/83304/3893566/Screen%20Shot%202014-01-02%20at%2010.34.45%20PM_2048.jpg" alt="" /></p>

[dxin]

<p>They are more visible at high ISO.<br>

Returning it doesn't solve the problem: every camera has a few dead pixels. I suggest send it in and have the dead pixels disabled, or just leave them there.</p>

 

[keith reeder]

<p>Many Raw converters (including ACR in Photoshop) map these out automatically - it's really not an issue, and as Xin says, all camera sensors have dead/stuck pixels.</p>

<p>Certainly, <em>one </em>visible dead pixel will be <em>well</em> within manufacturing tolerance - one out of 16.3 million is pretty good going. Even if the tolerance was (say) only 00.1% of the number of pixels on a sensor, that'd still allow for <em>1600</em> errant pixels before the manufacturer would consider the sensor "defective".</p>

[keith reeder]

<p>Here's some useful reading on the subject - it's primarily in a Leica context, but it tells the story: http://www.l-camera-forum.com/leica-forum/leica-m9-forum/293560-dead-pixel-week-old-leica-m.html#post2478084</p>

[keith reeder]

<p>Yeah, glad we could help, M K...</p>