Canon has delayed the launch of three professional lenses until spring 2011, including what was meant to be the worldu2019s first fisheye zoom to deliver both circular and full-frame images.

Canon 400mm f/2.8L IS II USMCanon has delayed the launch of three professional lenses until spring 2011, including what was meant to be the world?s first fisheye zoom to deliver both circular and full-frame images.

On 26 August Canon announced the launch of the EF 300mm f/2.8L IS II USM, EF 400mm f/2.8L IS II USM and EF 8-15mm f/4L Fisheye USM.

However, in a statement released today the firm said: ?Canon has now delayed the introduction of these lenses due to some adjustments in the manufacturing process.

?These lenses are now due to be released in March 2011.’

No further details were made available.

The EF 8-15mm f/4L Fisheye USM is meant to replace the 15mm f/2.8, a 23-year-old optic the parts for which can no longer be sourced.

The EF 400mm f/2.8L IS II USM and EF 300mm f/2.8L IS II USM boast improved Image Stabiliser technology and ?rapid? AF systems.

The optical elements of all Canon?s new lenses include a Spectra coating which aims to reduce flare and ghosting.

While a new Fluorine coating on the front and rear elements makes marks, such as those left by water ?much easier to clean?, said Canon in August.