By Gavin Seim: Updated 05/13) – HDR (High Dynamic Range) is really powerful, but often misunderstood. People will throw images into the latest software only to mimic the easy, but often ugly and over processed “HDR look”. That HDR that has become the stigma of the technique. HDR and especially HDR portraits can be challenging, but they are not rocket science. It just takes some time to get the hang of the subtleties. Here’s a few tips that anyone can use for both pictorial and portrait work to mange dynamic range better.
1. Understanding HDR: It’s not a style in itself. A style is something that comes from you. HDR all about light. Sometimes it’s from a single file. Often it means getting various exposures at different lightness levels and then combining them in a way that looks good either manually, or using tone-mapping or fusing, with software like Photomatix and others.
But contrary to what overdone HDR suggests. It’s not about showing ALL the light in a scene. Without shadow, an image is usually flat, chaotic and without focus. HDR about gaining control over all the light in a scene. It’s almost like a bucket filled with light from an entire scene and you can use it however you want.
2. Tripods & Releases: While most HDR rendering software can attempt to line up images, you really want clear consistent frames because stability is key. If there’s no other option, you may have to hand hold and hope for the best. It can work, but a tripod is king and is always the safest route. Even with single image exposures, using a tripod will generally get you better quality. See The Six Keys To Image Quality.
Cable releases are also a great tool. Allowing you to avoid touching the camera while making frames. Good for sequences and long exposures. Besides that, it looks cool to stand there majestically and press the release button.
3. Auto Bracketing: Most DSLR’s have an auto bracket function that allows you to have -2, 0 and +2 exposure compensation in one quick burst. AB allows you to expose things fast without handling the gear as much. In some cases you may want to manually get a wider exposure range, but I find that 3 images are usually all I need.
Auto bracketing is not only convenient, it’s especially valuable with HDR portraits or moving subjects because you need to capture your sequence as fast as possible without having to manually change settings. But remember that just because your bracketing is not an excuse for poor exposure. Keeping that middle frame dead on will give you a better final result.
