Nikon has said that its forthcoming D800, D800E and D4 digital SLRs will cost up to £400 more than you might have thought – though it's honouring the original quoted prices for anyone who's already pre-ordered.

Blaming the problem on a "local internal systems error", the D4 (above) will really cost £4,408 – not the £3999.99 quoted originally. The D800 is £2,167, not £1,999. The D800E is £2,417, not £2,242. All prices exclude VAT.

Here's Nikon's statement, as emailed to us this morning:

"Due to a local internal systems error, the incorrect RRPs on the D800, D800E and D4 products were communicated in the UK and Irish markets at the time of announcement. The correct RRPs for the products should have been D4: £5289.99, D800: £2,599.99 and D800E: £2,899.99. We would like to apologise sincerely to our customers for this unfortunate mistake, which has been corrected with immediate effect. We know that there has been strong consumer interest in these products and a high level of pre-orders placed with retailers; Nikon will be honouring the original prices to retailers on all customer pre-orders placed before March 24th 2012."