Immediately after the presentation of iPhone 7 Plus dual main camera of the smartphone has become the subject of heated discussion in the Network. As conceived by Apple, the dual camera should not be construed as such. She does two scenes, does not remove one lens green and yellow pictures, and the other black and white. It intelligently switches between two lenses with different focal lengths, or uses their ability in tandem to provide a more qualitative survey, the coveted optical zoom or bokeh effect.
Dual optical module iPhone 7 Plus equipped with different cameras: one wide-angle 28 mm, aperture of f/1.8, the other with a telephoto lens 56 mm, f/2.8 aperture. The first one captures more light and allows the telescopic optical zoom, but gets less light. Thanks to two cameras of the iPhone 7 Plus supports 2x optical zoom complemented by a 10x digital. How to realize the function of optical zoom with a lack of lighting or close-up photography, told the Vice-President of worldwide product marketing Phil Schiller.
Tweet from the top Manager was asked why, in some situations, the 2-fold zoom makes a wide angle camera iPhone 7 Plus and not telescopic for optical approximation without losses. This fact has been confirmed by the EXIF data of the pictures smartphone, some of which were with the digital zoom.
According to Schiller, when each photographing iPhone 7 Plus is free to decide which camera to use. The lack of lighting or macro photography, the smartphone prefer wide angle and is the optical zoom uses digital. As a result of cropping an image and optical image stabilization (telescopic lens is not equipped with such) minimized loss in quality. In some situations, a small loss is better than very dark photos. A telephoto lens iPhone 7 Plus does not allow you to do macro photography at close range, as wide angle.
As for shooting in good lighting conditions, both cameras iPhone 7 Plus work in pairs: the original photo is glued together from two frames. Special image processor, calculated over 100 billion operations in just 25 MS, borrows the bright parts of the photo with a telescopic lens, and dark — with a wide angle. Due to this additionally increases the quality of the pictures is a wider dynamic range and accurate colour reproduction.