Meanwhile, the publishing company behind the Magic Lantern Guides series has issued a statement, in response to speculation that Nikon may be poised to launch a new D400 DSLR.

Haley Steinhardt, editorial manager at Sterling Publishing, said: ‘Due to an internal systems error, the Magic Lantern Genie Guides book with ISBN 978-1454707820 was mistakenly listed with a fictitious model name: the D400.

‘This was a dummy title that never should have fed out to booksellers, and neither Simon Stafford nor Sterling Publishing Co., Inc have any knowledge of such a camera model.

‘Apologies for the confusion.’

Yesterday, a spokesperson for Nikon told Amateur Photographer: ‘Unfortunately, we are not able to comment on potential future product.’