Canon EF 400mm F5.6L Lens Hood STUCK Halfway

[dandeliondigital]

Hi all,

Help please.

I have a Canon EF 400mm F5.6L Lens with the slide out lens hood STUCK Halfway.

Not sure why it happened, but it is frozen and will not be moved. It's out just far enough to prevent capping the lens.

Anyone have similar experiences? Any ideas for fixing this?

Or should I simply pack it off and send it in for Canon Service?

Thanks in advance, and so long for now, Tom