Nikon is set to add another £80 to the price of its flagship consumer digital SLR, the D90, blaming exchange rate fluctuations.

From next month the D90 will cost £849.99, body only.

The 10% rise means that the price of the 12.3MP DX-format DSLR has risen by around £150 since its debut in September last year. That equates to an overall increase of 21%.

A Nikon spokeswoman said: ‘As a result of volatile exchange rate conditions the RRP of the D90 will be increased from 1 May 2009.’

She pointed out that the D90 escaped the last round of price rises in March.

The D90 is Nikon’s first digital SLR with on-board video.

It replaced the two-year-old D80 model.