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Canon 500D stuck/hot pixels fix

Started Apr 24, 2019 | Questions thread
karl mohr Senior Member • Posts: 1,678
Re: Canon 500D stuck/hot pixels fix
1

Even new 70D and 80D cameras can do this during long exposures.  Definitely use the long exposure noise reduction.  This is a pain as the camera will take a 'dark frame' after each picture, the same length of time as the original, and then subtract the noise from the image.  It really is a pain if you shoot 2 and 3 minute exposures like I have done at times in bulb mode.  But it works.

One other thing, Canon has an undocumented feature that maps out dead pixels.  Put the body cap on, then set the camera for manual sensor clean, let that go for about a minute.  (This is the same setting you would use to open the shutter for swabbing the sensor).  I did this to fix a bad pixel on a brand new T2i awhile back.  It was so bad that the dead pixel showed up as a white spot - even on the LCD in live view.

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