Background Information
This weeks brief had this criteria:
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HDR
The dynamic range, also known as the luminance range. Is a measure of how bright, light is reflecting off a surface to the human eye. Basically speaking this is a measure of how bright any given surface appears to the human eye. Used in photography high dynamic range allows for a greater range of luminance between the light and dark part of the pictures that couldnt otherwise be achieved using current digital imaging techniques.
Dynamic range in photography is measured by EV (Exposure value) this is the cameras shutter speed and relative aperture. EV can be used when you have no other metering system available to ascertain the correct shutter speed and aperture settings for any given scene.
HDR Photographs are created by merging 3 or more photographs of different exposures. If 3 photos are merged this gives that image a dynamic range of 3 stops. This is equivalent to a colour negative from a film camera. The more stops you use the greater the dynamic range of the photograph is. However using too many stops can have the opposite effect and anywhere from 15+ stops it can reduce the dynamic range of a image. 15 Stops would be pushing even high end professional DSLRs to the limit. The cameras ISO will also effect how great the dynamic range is that you can capture with ISO's 100-200 being the best both offering 11 full stops (Stops are also known as EV).
HDR Photographs are created by merging 3 or more photographs of different exposures. If 3 photos are merged this gives that image a dynamic range of 3 stops. This is equivalent to a colour negative from a film camera. The more stops you use the greater the dynamic range of the photograph is. However using too many stops can have the opposite effect and anywhere from 15+ stops it can reduce the dynamic range of a image. 15 Stops would be pushing even high end professional DSLRs to the limit. The cameras ISO will also effect how great the dynamic range is that you can capture with ISO's 100-200 being the best both offering 11 full stops (Stops are also known as EV).
In practice I have used 7 stops to capture my HDR photographs.
HDR can be over done and although it is down to preference too much tone mapping and editing of the photos can make them appear unreal and even have the exact opposite effect of HDR. This is perhaps one the the reasons HDR photography has a stigma attached to it at this moment in time.
Planning
I had to now choose a location for my shoot. I have to shoot during the magic hour so it is important i know exactly when this is.
The weather was also important, i didnt want a clear night i wanted some clouds to disperse and distort the light.
HDR Stops explained from my photograph
Side by side comparison of my single photo (left) vs HDR final image (right)
Final HDR WPP Image
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