This hidden iOS 11 function is a video creation feature, even though you don't operate it directly from the Camera app. While video aficionados may already have heard of the video-centric HEVC, which now is almost universally supported by the newest desktop video editing software, Apple has already been quietly using the tech to save on bandwidth and data for its FaceTime app since the launch of the iPhone 6. Note that Google Photos is not supported, at least not yet. Videos will then save as HEVC MOV files, while images will be saved as HEIC as opposed to JPEG in your phone. If you have an iPhone 7, 8 or X, you can choose the new compression methods at Settings > Camera > Formats by checking the High Efficiency item. HEIFs can be created with iPhones and iPads that have an A10 Fusion or newer chip - the iPhone 7 and later devices - with the results exported to all compatible devices as familiar MOV and JPEG files. The current JPEG compression standard is an image format only. It can also store multiple images, text, audio, video, depth information, sequences, which makes the format great for Live Photos and dual camera systems like iPhone 7 Plus. HEIF is the technique to compress individual frames that comprise an HEVC video, and Apple is using it to hold HEVC-compressed still images - that is, still images with video compression. One reason for this new compression standard is that HEIF is a container rather than a file format, a standard created by the MPEG group. OIS is automatically enabled, while the HDR or flash symbol are colored yellow when activated next to the yellow Depth Effect at the top of the screen. Image stabilization, a prized element in standalone cameras and DSLRS, reduces the effect of camera shake for both photo and video, and boosts the range of light for acceptable photos. (Lighting effects in Portrait Mode are only available to Apple's newer dual-lens phones, the iPhone 8 Plus and iPhone X.) ![]() Only available for the Portrait mode, iOS 11 now features optical image stabilization (OIS) in addition to HDR shooting, True Tone flash, and the bokeh effect. ![]() All that changes in iOS 11, where Portrait Mode operation is available in conjunction with all three techniques in addition to new optical image stabilization. But there were significant obstacles to using it in iOS 10 because you couldn’t employ flash or filters, or shoot in High Dynamic Range (HDR) mode. Portrait Mode in the iPhone 7 Plus, iPhone 8 Plus and (soon) the iPhone X uses the camera’s two lenses to record depth data and a DSLR-like wide aperture effect. Now, iOS 11 adds critical new capabilities, which do not require additional photographic expertise. Pro photographers flocked to the iPhone 7 Plus because of its advanced shooting proficiency and unique Portrait mode.
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