Comparison of photos taken by all versions of the iPhone (first generation iPhone, iPhone 3G, iPhone 3GS, iPhone 4, new iPhone 4S), the Canon S95 amateur camera ($ 500), and the Canon 5DMKII professional single-lens reflex digital camera ($ 4000 +) in two situations: 1. Macro for quality testing and detail; 2. A picture of the horizon in natural light.
The iPhone 4S shoots definitely sharper and better than previous versions of the iPhone. Separate use of focus and shutter speed in Camera + on iPhone 4 and 4S significantly helped create a more balanced frame. So far, the quality of the pictures does not reach the level of a professional camera, but it is already comparable to the line of top-end compact cameras, and in some ways even surpasses them. ')
UPD:DimonCJ : Here's a curious comparison of Canon 5D MkII and iPhone 4s videos - vimeo.com/30606785
Original iphone EXIF Data Camera Apple iPhone Software Camera + 2.3.1 Aperture f / 2.8
iPhone 3G EXIF Data Camera Apple iPhone Software Camera + 2.3.1 Aperture f / 2.8 Flash No flash function Metering Mode Average
iPhone 3GS EXIF Data Camera Apple iPhone Software Camera + 2.3.1 Aperture f / 2.8
iPhone 4 EXIF Data Camera Apple iPhone 4 Software Camera + 2.3.1 Aperture f / 2.8 Focal Length 3.9 mm ISO Speed 100 Flash Off, Did not fire Metering Mode Spot Light Value 8.9
iPhone 4S EXIF Data Camera Apple iPhone 4S Software Camera + 2.3.1 Exposure 1/60 sec Aperture f / 2.4 Focal Length 4.3 mm ISO Speed 80 Flash Off, Did not fire Metering Mode Spot Light Value 8.8
Canon S95 EXIF Data Camera Canon PowerShot S95 Software Camera + 2.3.1 Exposure 1/60 sec Aperture f / 2.8 Focal Length 6.0 mm ISO Speed 32000 Flash Unknown (0x1000) Metering Mode Unknown (1280) Light Value 0.6
Canon 5DMKII + 100mm f / 2.8 EXIF Data Camera Canon EOS 5D Mark II Software Camera + 2.3.1 Exposure 1/40 sec Aperture f / 2.8 Focal Length 100.0 mm ISO Speed 100 Flash Off, Did not fire Metering mode partial Light Value 8.3
Original iphone EXIF Data Camera Apple iPhone Software Camera + 2.4 Aperture f / 2.8
iPhone 3G EXIF Data Camera Apple iPhone Software Camera + 2.4 Aperture f / 2.8 Flash No flash function Metering Mode Average
iPhone 3GS EXIF Data Camera Apple iPhone 3GS Software Camera + 2.3.1 Aperture f / 2.8
iPhone 4 EXIF Data Camera Apple iPhone 4 Software Camera + 2.4 Exposure 1/2155 sec Aperture f / 2.8 Focal Length 3.9 mm ISO Speed 80 Flash Off, Did not fire Metering Mode Spot Light Value 14.4
iPhone 4S EXIF Data Camera Apple iPhone 4S Software Camera + 2.4 Exposure 1/2762 sec Aperture f / 2.4 Focal Length 4.3 mm ISO Speed 64 Flash Off, Did not fire Metering Mode Spot Light Value 14.6
Canon S95 EXIF Data Camera Canon PowerShot S95 Software Camera + 2.4 Exposure 1/64 sec Aperture f / 2.8 Focal Length 6.0 mm ISO Speed 20480 Flash Unknown (0x1000) Metering Mode Unknown (1280) Light Value 1.3
Canon 5DMKII + 24-70mm f / 2.8 Camera Canon EOS 5D Mark II Software Camera + 2.4 Exposure 1/2500 sec Aperture f / 2.8 Focal Length 24.0 mm ISO Speed 100 Flash Off, Did not fire Metering mode partial Light Value 14.3