One of the new features in iOS 4.1 is HDR photos. Normal photos may include some very bright and very dark areas (e.g. taken inside a house looking out), so it's difficult to expose the entire photo correctly. HDR (High Dynamics Range) takes a few photos at different exposures and picks the best exposed areas from all photos to combine them into a properly exposed photo.
When I first heard about HDR in iOS 4.1, I searched for a HDR app and found Pro HDR by eyeApps LLC (AUD$2.49).
- Manual mode
- Adjust white balance, contrast, saturation etc. in the finished photo
- Automatically aligns photos
|iPhone 4 camera, no HDR|
One of the disadvantages of HDR is that it's very slow. For Pro HDR, you have to take 2 pictures (auto mode is even slower as it scans through all exposures before taking them), and it spends even more time processing the photos. HDR in the camera app takes pictures much faster, but spends just as long processing them. I recommend leaving HDR off in case you want to take a picture in a hurry.
|iPhone 4's HDR|
Is it worth buying an extra HDR app? I say if you use HDR, yes. The manual control is very useful, and you can be sure this app is performing true HDR. HDR comes in useful when taking pictures outdoors and the sun is behind your subject.
More HDR photos:
|Taken using Pro HDR, I think with auto mode|
|Taken using Pro HDR, I think with auto mode. Note how the tree leaves in the top right don't align properly.|
|I think this was using HDR on the camera app, with and without HDR.|