The Lomographic Society this weekend celebrated its largest ever exhibition, consisting of 100,000 images that went on display in London?s Trafalgar Square.

Called ?LomoWorldWall?, organisers billed the open-air exhibition as a ‘snapshot portrait of the world’.

The show featured photos captured by members of the public using Lomo cameras, some of which have been previously exhibited elsewhere.

Lomography fans marked the milestone by staging a party on the Thames on Saturday night.

The event marked the climax of the Lomography World Congress London 2007, which featured a week-long series of activities organised for Lomo enthusiasts, which included photo challenges.

The Lomographic Society has now revealed plans to stage a 2km long LomoWall exhibition, using 1m Lomo snapshots, to be unveiled in ten years time.

So far, the Lomographic Society holds more than five million pictures, snapped by nearly one million photographers, in its archives.

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Movie star Brad Pitt was recently spotted using a Lomo camera.

? Russian President Vladimir Putin is credited as the man who saved The Lomographic Society, apparently granting the Austrian group a vital tax break when he was deputy mayor of St Petersburg.

The move reportedly helped The Lomographic Society stay in business, soon after it had begun selling refurbished cameras from the Leningrad Optics and Mechanics Association (Lomo)

Photo credits: Chris Cheesman

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