i think ive broke my camera

[c6 cya]

hi all i have a canon 400d, last time i used it, it worked fine took about 30 photos and everything was fine, now last weekend i went to take some photos and the lens would focus but the camera wouldnt take the picture i tried several diffrent settings and modes and still no luck. I also changed through all my lenses but still nothing . the camera is about 18 months old and has taken about 3000 pictures any ideas what could be up? many thanks chris

 

[thebigdogsix]

Is the memory card still in the camera?

 

[Matt Sayle]

Thank god my camera has been relaible. 100,000 photos in just over a year and now the lens has started to play up Not bad, eh?

 

[GarynLea]

Did you point the camera at a high contrast subject? If the sensor doesn't pick up a clear subject, it will occasionally hunt for one.