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Hot pixels ?

Discussion in 'X-T2, X-T1, X-T20, X-T10' started by Leonardo Kibanoff, Apr 15, 2017.

  1. Leonardo Kibanoff

    Leonardo Kibanoff New Member

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    Hi All-
    Purchased a used 14 mm f2.8 did some test shots with to today
    and noticed these "blue things" in the darker areas of the photo- Thinking is the lens doing this?
    so screwed on my 35 f2 and same thing..
    So, are these what they call hot pixels?
    Never saw these before I did the latest firmware update
    Posted first is from the 14-
    will reply to add the files from the 35 -
    these are just screen shots- maybe I did something within the camera menu or in LR ?

    14 1.png

    14 2.png

    14 3.png

    14 3 .png
     
  2. Leonardo Kibanoff

    Leonardo Kibanoff New Member

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    "Blue things from the 35- If I didn't mention- I have the T2

    35 1.png

    35 2.png

    35 3.png

    35 4 .png
     
  3. c22w1

    c22w1 Member

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    It's showing where blacks are clipped. You have selected this at some point while you have been processing the image, to unshow them click the white symbol at the left of the histogram.
     
  4. Leonardo Kibanoff

    Leonardo Kibanoff New Member

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    Awesome!! Thank you so much c22- now I know what those darts are on either side of the histogram
    for a moment I thought I had to revert to my Sony for tomorrows function
     
  5. tijuana taxi

    tijuana taxi Well-Known Member

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    As the man said, you may have heard them referred to as "blinkies" very useful tool for identifying over and under exposure
     
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  6. c22w1

    c22w1 Member

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  7. Leonardo Kibanoff

    Leonardo Kibanoff New Member

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    Come to think of it- I know how I could of accidentally hit the button- I usually grab that area of the histogram to bring up shadows / darks
    didn't know those were active buttons- lesson learned
    Thanks again for the quick replies
     
  8. Spudboy

    Spudboy Member

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    Hitting the letter "J" will also do it.
    I hit "J" a lot as I use shortcuts and "J" is right next to "K" and it is annoying.

    Not nearly as annoying as hitting CMD W when I want CMD E. This tells LR to quit and the dialog box has no cancel button.
     
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  9. pixelstate

    pixelstate Well-Known Member

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    I expect that was a scary moment... still worth it to discover a very useful lightroom feature :)

    If you want to see real hot/stuck pixels you might like to try taking a very long exposure (2-3 minutes) you will likely see some...
     
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  10. Leonardo Kibanoff

    Leonardo Kibanoff New Member

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    It was at first, because the first set showed a very small dot here and there, thenI saw the big streaks and thought I must of hit something in the menu or something LR- So decided to post it here and ask, sure nuff that's what it was-
    and yes agreed that was a good discovery, ever since he "scare" been use it now as a guide to not overdue the recovery.
    Haven't done anything longer than 30 sec. but even if I did I probably wouldn't notice- I mean look at what I though was hot pixels...
     
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  11. pixelstate

    pixelstate Well-Known Member

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    Hot Pixels, Dust Spots, Chromatic Aberrations, Lens Flare, Ghosting, Vignetting - All things sent to try us as Photographers :)
     
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