[dica] Why does the iPhone take two identical pictures when the HDR function is on?

[dica] Why does the iPhone take two identical pictures when the HDR function is on?

Like iOS 4.1, Apple introduced a nice new feature to the iPhone camera: the HDR (Acronym for Great Dynamic Range), which is able to improve the illumination of photos that have a great contrast of brightness at different points (read “iOS 4.1: discover the new Wide Dynamic Range (HDR) function in iPhone 4 photos”).

However, many who did not follow this news and recently bought the iPhone 4, are surprised by the fact that two repeated photos appear on the Camera Roll. Why does it happen?

In fact, this is an adjustment option, so you can choose which photo looks best, with or without HDR application. It keeps an original copy of the photo in case the effect, for some reason, distorts the image (it can happen mainly if you take pictures of moving objects). But you can disable this by asking the system not to save the original image, in case you don’t want to take up too much space on your device. It’s easy and fast, here’s how:

1. Open the Settings and select the menu Photos.

2. At the bottom of the page, disable the “Keep Photo Normal”.

Okay, now all your photos taken with HDR will not be duplicated, as the system will only save the one that contains the effect. You can still enable or disable HDR directly in the Photos app.

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