Hotspots....disapear after a few seconds in ACR?!

Discussion in 'Photography Beginners' Forum' started by battletone, Oct 10, 2009.

  1. battletone

    battletone TPF Noob!

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    So after taking some nighttime photos, I noticed I have a few more hot pixels (those red ones) than I thought I did....plus on a couple snaps of the same scene I have a handful of white pixels (whatever those are) that can be seen in the same spot of multiple photos. :confused:

    So I took a 30 second exposure with the lens cap on to see where my pixels are.

    I count 4 hot pixels. I didn't see the white ones, but I couldn't zoom in because once I zoomed in with ACR, they disappeared. They seem to automatically disappear before my eyes even if I just open the RAW and let it sit for a couple of seconds. If I open the RAW and then open it in Photoshop, they do not transfer over. :no smile: However, they seem to show up in my jpgs, and I know they have been there in previous RAWs that I opened into PS.

    What gives?
     
  2. benlonghair

    benlonghair TPF Noob!

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    My guess would be automatic hot pixel removal as part of the noise reduction setup. But that's just a guess. I tend to just clone hot pixels out in PP.
     

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