Playing with HDR - Questions about night HDR

Discussion in 'Beyond the Basics' started by pgowder, Aug 31, 2009.

  1. pgowder

    pgowder TPF Noob!

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    I've started playing with HDR.

    Here are my first few:
    HDR - a set on Flickr

    Not the most interested subjects, but wanted to play with the technique.

    I also tried a few at night. The noise was terrible!

    Are there some tips for that?

    Also I've seen some shots of fireworks using HDR. How is that done with the long exposure?
     
  2. pgowder

    pgowder TPF Noob!

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    Also on this one:
    [​IMG]

    The wood on our roof is a light blue. How can I get that to be a more true blue? In this it turned grey.
     
  3. manaheim

    manaheim Jedi Bunnywabbit Staff Member Supporting Member

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    This HDR thing is like some kind of virus lately.
     
  4. Jaszek

    Jaszek No longer a newbie, moving up!

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    I'm afraid it's starting to become a pandemic. At least I got an "HDR Shot" so I think I'm mostly immune to it. Might try an HDR from time to time, but if it doesn't work out I just dump it.
     
  5. manaheim

    manaheim Jedi Bunnywabbit Staff Member Supporting Member

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    Certainly don't care that people do it, but it boggles me to see people do it when it seems totally pointless. Like folks just don't even know why you should be doing it to begin with, but they heard it was what all the cool kids were doing, so they dive in.

    (no offense, OP... just that your images are generally those that don't benefit a TON from HDR/tonemapping... admittedly SOME... (mainly in the shadows under the deck, for example), but really not enough to warrant the effort, IMO)
     
  6. Stormin

    Stormin TPF Noob!

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    I'm going to say that it's more like Crack in the eighties, Meth in the nineties. HDR is the new drug of choice for the youth these days.

    To the OP, it all has to do with bringing out details that you would not have seen if the image weren't tonemapped. There's so very little variation that you don't need it.
     
  7. pgowder

    pgowder TPF Noob!

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    I agree these weren't great HDR candidates. Like I said in my first post I'm trying to just learn the technique and the software.
     
  8. pgowder

    pgowder TPF Noob!

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    Does anyone have answers to the questions I asked?
     
  9. manaheim

    manaheim Jedi Bunnywabbit Staff Member Supporting Member

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    1. Use noise reduction software like Noise Ninja to reduce noise.

    2. I assume an HDR of a firework would be done by taking a raw image, creating 3-4 exposures of the firework from the single image and then using them to create a "fake" HDR. (if there is such a thing)
     
  10. pgowder

    pgowder TPF Noob!

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    1. So after you combine the images take it into NN or run the 3 photos into it before?

    2. How does that work? Just save the 1 image as 3 separate images with different exposure settings?
     
  11. manaheim

    manaheim Jedi Bunnywabbit Staff Member Supporting Member

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    1. Yes (though photomatix does have some NR in it... though it only seems to work "kinda")

    2. Essentially, yes. Crank your exposure up and down in the RAW settings.

    btw, interestingly I don't think most people notice or care much about noise in HDR/tonemapped images... I think there's so much obvious difference from a "usual" photograph that people glaze right over it. I've never corrected the noise in any of my HDRs.
     
  12. pgowder

    pgowder TPF Noob!

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    The ones I did at night made the sky look like sandpaper!
     

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