The iPhone 4S is already the second-most popular cameraphone used by Flickr members less than six weeks after its release.

Flickr's Camera Finder page shows that Apple's iPhone 4 is still the most popular device used to take photographs posted to the site, ahead of the Nikon D90, but as picked up by MacRumors the iPhone 4S is already the second most popular cameraphone, having overtaken the iPhone 3G, the iPhone 3GS and the HTC Evo 4G in recent days.

The iPhone 4S was launched on 14 October and has an 8-megapixel camera, superior to the iPhone 4's 5-megapixel snapper.

Macworld's Jason Snell said of the iPhone 4S' camera: "As the saying goes, the best camera is the one you have with you. I’d wager that the iPhone 4S will actually be the best camera in the household of the majority of its owners."

The iPhone was recently endorsed on television by renowned photographer Annie Leibovitz, who called it the "snapshot camera of today" and said that she recommended the iPhone when asked by her friends which camera they should buy.