Probably stupid, Can you do this?

Discussion in 'Photography Beginners' Forum' started by Sirashley, Aug 12, 2008.

  1. Sirashley

    Sirashley TPF Noob!

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    Okay, Just got into HDR. Here is my question. Can you make an HDR photo from a single exposure, then take that single RAW photo and save it three different times with different Ev (-2, 0, +2) settings? I did this and heres what I got. It seems to work, but my question is also, is there any reason not to do this? Quite honestly, it makes life really simple as I didn't have a tripod on this trip... Thanks in Advance...

    Original photo

    [​IMG]


    HDR Version

    [​IMG]
     
  2. Syndac

    Syndac TPF Noob!

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    That's exactly how I do all my HDRs and as you've just showed, it works quite well. I take all my pics in raw so that I can pick and choose which I want to create HDRs with. It also allows you to do HDRs of motion. Three seperate pictures wouldn't have worked in your example because of the movement from the cars and boats.
     
  3. NikonNyc

    NikonNyc TPF Noob!

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    Great job man. I actually never thought of this! SO simple this is how i shall be doing my HDRs from here on in.
     
  4. chrisburke

    chrisburke TPF Noob!

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    this is how ive always done mine
     
  5. prodigy2k7

    prodigy2k7 No longer a newbie, moving up!

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    Well you will probably get better IQ images if you actually take the correct exposed instead of doing it in photoshop making them brighter or darker...
     
  6. SandShots

    SandShots TPF Noob!

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    what does hdr stand for?
     
  7. prodigy2k7

    prodigy2k7 No longer a newbie, moving up!

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    high dynamic range
     
  8. Alex_B

    Alex_B No longer a newbie, moving up!

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    i cannot see an hdr image here.

    i only see a tonemapped image. the dynamic range is not increased though.

    what you did is, you used more of your sensors sensitivity latitude that way, since there is more in your RAW data than in a single jpg. but still that latitude is very narrow.

    this is not a scene made for HDR anyway, since the difference between bright and dark is small enough to be captured in one normal image.
     
  9. Syndac

    Syndac TPF Noob!

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    Creating 3 exposures from a raw file isn't the same as using photoshop to brighten or darken an image. Pretty much all of my best HDR images came from 1 raw file.
     
  10. K_Pugh

    K_Pugh No longer a newbie, moving up!

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    Yup i've got to agree. I've got the "detail" out of that one image with simple levels/curves/shadow&highlight (2 mins) - just except from the unnatural/oversaturated colours

    I dare say using the method of creating 3 from 1 RAW may get you better overall quality (less noise) etc but i wouldn't call it a true HDR.
     
  11. K_Pugh

    K_Pugh No longer a newbie, moving up!

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    Sirashley, i hope you don't mind, it says your photos are ok to edit.. i just wanted to post this to demonstrate my point a little (i can take it down if you want, just say the word)

    [​IMG]

    I can see the point of doing it though if you need to get the shadow detail up without bringing up too much noise - i'm sure bringing the exposure up in RAW adjustments is better than bringing the shadows up in photoshop.
     
  12. AussieDee

    AussieDee TPF Noob!

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    I was rather curious as to how HDR was done and since a few people have done it this way, can I ask then...

    How do you combine the 3 separate images to one? How do you overlay them? Are you using Aperture or Photoshop? (I have both).
     

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