High Dynamic Range or HDR PhotographyIn Blog
Haunting, surreal, and quite possibly the first major way in which digital photography does something which film photography can’t emulate – or even come near. HDR – or High Dynamic Range – photography is nothing new, but as new tools and techniques make the artform more available, HDR photography is taking off in a big way.
What is HDR Photography?
High Dynamic Range photography or HDR photography is an advanced set of photography techniques that play on image’s dynamic range in exposures. HDR Photography allows photographers to capture a greater range of tonal detail than any camera could capture thru a single photo.
While many imaging experts regard HDR photography as the future of digital photography, the discipline has long been in existence.
HDR photography is present in many pictures taken through modern day digital cameras. The truth is, if you are a real photography enthusiast then there is a great chance that you have taken at least one photo exemplifying HDR photography.
The real functions or even executions of HDR photography may be debatable. But no matter which website or source you consult they will always say it is a technique that employs the great use of exposure range to get distinct values between light and dark areas of the image. Its real intention is to create an image that accurately characterizes the intensity levels found in natural scenes. If you ever wondered why the picture you took was different from the scenery you actually saw, then maybe it’s time for you to learn HDR photography.
HDR Photography is the technique used to capture and represent the full (as possible) DR found in a scene with high perceptual accuracy and precision. To remember things better, think of the 3S: sunlight, shadows and subjects. These are the things that make an ordinary picture an HDR image.
Theory Behind HDR photography
There are two theories behind HDR photography. And as the technology around HDR photography evolves so is the discipline itself. But if one wants to take HDR imagery seriously then he must first understand the concepts and theories that make up this discipline.
The most fundamental of all HDR photography theories is to take multiple shots at varying exposure levels of a particular subject. A special computer program will then combine the images together into a single image. This is just an incarnation of the original theory during the time when there are no digital cameras and advanced computers and programs were nothing more than a work of science-fiction.
The second theory is the one that capitalizes on the RAW processing software to create various exposure levels of the same image. Modern Digital SLR camera and a lot of the Point and Shoot models allow photographers to capture RAW images. A RAW image or file is the data captured by your Camera’s sensor that is not processed yet and therefore does have color information. You can manipulate this file, adjust its color, lighting or while balance.