The current edition of the excellent Canon EOS magazine carries my tutorial on the production of HDR (High Dynamic Range) images.
Firstly, let me just say that if you’re a Canon user and don’t subscribe to EOS then it’s well worth considering. I’ve been a reader of the magazine since before I started working as a professional photographer and the content is always excellent. Especially this edition 
There’s always a good spread of features that will appeal to people across all levels of photographic ability and if you have a thirst for the technical then there are plenty of gear-related articles. I learned how best to operate my Speedlite flash-guns (strobes, if you’re American) from EOS articles and discovered custom functions on my 1Ds MKII that would otherwise have remained hidden.
For those of you who raise a quizzical eyebrow at the term “High Dynamic Range”, hopefully the article will explain what it means but in simple terms it’s just this: some scenes contain areas of high contrast, bright sunlight and deep shadows, for example. A camera is pretty much incapable of capturing all of the brightness levels that the human eye can see. A High Dynamic Range image is typically a series of photos taken at different exposures and then merged so that all the available brightness levels can be reproduced.
My January desktop wallpaper is an example of a High Dynamic Range image.
You can read the article online or download it as a PDF from the link below.
High Dynamic Range Images Tutorial
Many thanks for this, Gav. I haven’t read it all the way through yet, but it certainly looks useful… for a HDR novice like myself.
I used to subscribe to EOS mag and enjoyed it very much. But it was one of the things that had to go, during my own personal credit crunch.