The camera has been improved with a new Apple-designed lens with an f/2.2 aperture and a sensor that's 15 percent larger — it's still 8 megapixels. Each bigger megapixel lets in more light.
Here's what's new:
1.5-micron pixels on sensor, still 8 megapixels, sensor 15 percent larger than iPhone 5's
5-element lens with f2.2 maximum aperture, increased from f2.4
10fps burst mode
120fps slo-mo
Best shot selector for multishot and burst
True Tone flash which white balances the color temperature of the the flash light during the shot, not the image in post-processing
Image stabilization for stills
Dynamic tone mapping, which automatically analyzes the scene and does local adjustments
These are really nice features which are made possible by the 64-bit A7 chip, which provides power for photo processing.
The smartphone comes with a new flash called True Tone, with dual-LED. This is meant to take that whitish, blue tint out of photos taken with flash. One of the LEDs is the normal cool white and the other is warm amber. The new iPhone can combine them in over 1,000 ways to match the room and the skin tone, offering the best possible picture even in low light.
The camera also offers image stabilization along with a new 10-shot burst mode.
There's yet more with the camera: it has a 120fps 720p slow-motion video mode, and it does automatic motion reduction by analyzing multiple frames when you take a single shot.
