iPhone 5 camera distortion

Apple claims the iPhone 5 with a new camera, media evaluation results show that this camera is imaging effects with the iPhone 4S is almost the same, but its performance in low light conditions is still very good, but recently users reflect, iPhone 5The camera seems to some design flaws.

According to user reflect, the iPhone 5 to the bright light sources (such as sunshine or torch light) filming, pictures will appear in the big "purple halo" or "violet mist", and at the same time, image distortion is particularly obvious.

Have the user speculate that this phenomenon may be the iPhone 5 camera sapphire protective glass refract the light cause, but according to experts say, this problem as it is in digital photography is more common, usually called "color", also known as "purple edge". IPhone 5 appear this kind of circumstance is the most basic digital camera technology defect one: the distortion. Normally, objects reflect a different wavelength of light through the camera lens focused on single point of focus plane (sensor chip), so as to realize the perfect copy of external environment. However, in practice, there exists the design defect of the lens can't different wavelengths of light reduction for a bit, then can produce color difference, and color difference and usually appear in the short wavelength, such as ultraviolet light.

Some high-end lens chromatic aberration lens can eliminate purple fringing, though many of these products are usually more expensive and bulky. The distortion compensation is another form of non-spherical lenses with a specially designed to improve the light incident in order to obtain a more accurate restore focus, however, these lenses are also very expensive.

As for the iPhone 5's camera is there such a situation, the most likely reason is the presence of defects in the design, Apple only possible to make fine-tuning the iOS system, through a specific algorithm to compensate for the damage caused by the chromatic aberration on the imaging quality.