After talking much about Siri, it is time we scanned the camera of Apple's recently released iPhone 4S.

iPhone 4S has an 8-megapixel image sensor, up from the 5-megapixel camera of the iPhone 4. The extra resolution means the user can make larger blow-ups for his prints and crop more liberally.

The lens has a wider 2.4 F-stop opening to let in more light. That will produce better photos in low light and indoor situations. iPhone 4S is not the first phone to offer an 8-megapixel sensor. Motorola Droid Bionic and Samsung Galaxy S II already have it.

The image processor in the smartphone is the same chip as used in iPad 2. This means the camera operations will run faster, claims Apple. There is the ability to move the camera in more for close-up macro shots.

Snapping photos can now also be done on the volume-up button, which allows for steadier shots. The new and updated camera app for iOS 5 will make taking a photo a much easier affair. Users can capture a photo by simply tapping the Home button twice and open the camera app directly from the Lock screen.

Video resolution has improved to 1080p high-definition, up from 720p. As a result, there is the option to take some beautiful macro shots, thanks to the depth of field that this tiny snapper manages. It is not the first to have 1080p HD video as it is present in the Samsung Galaxy S.