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Thread: What is HDR?

  1. #1

    Question What is HDR?

    Hi, i'm a newbie, can anyone explain what is HDR and what it does?


  2. #2
    Join Date
    Aug 2006
    floating in space.

    Default Re: What is HDR?

    google it.
    D∞X, 1-∞ mm F0.17. I like to show off my equipment list because I'm pro. My Flickr

  3. #3
    Senior Member dennisc's Avatar
    Join Date
    Oct 2002
    Freezing Upp Thomson/Mandai!

    Default Re: What is HDR?

    HDR has been around for pretty long since it can painstakingly be done manually in photoshop all this while. Its like blending a few exposures to create a clearer, brighter.. hard to explain. Google it.

  4. #4
    Join Date
    Feb 2006
    3rd Rock from the Sun

    Default Re: What is HDR?

    or WIKI it....
    我吔呢班打工仔, 一生一世為錢幣做奴隸 flickr

  5. #5

    Default Re: What is HDR?

    HDR is a digital image processing technique to represent/create the illusion of more "dynamic range" than your sensor can capture; and dynamic range is the spread between the brightest and darkest in a picture.

    Examples of large dynamic range scene are like shooting into the sun at sunrise or sunset or in any high contrast situations. Without HDR, you either get deep shadows with no details, or blown highlights with also no details. With HDR you get details in both while possibly retaining the sensation of a natural visual experience. Alternatively the very same techniques can be used to get very surreal pictures.

    There are many techniques of doing HDR, the most common and easy to use is Photomatix from HDRsoft.

    And note that all imagery are artificial, including those "direct from cam, without retouching", etc, etc. So dont get too anal about trying to make HDR "natural". Just be artistic about it, as with anything else in life.

    Addendum: Just to add, HDR has been around for as long as there was photography. In analogue times, people use GND filters to overcome the mismatch between a scene's and the capture medium's dynamic range. Use of flash fill in is also another example of trying to narrow a scene's large dynamic range.
    Last edited by espion; 9th June 2008 at 10:18 AM.


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