How was this photo taken...another one!

[stoogest]

Hi all,

I came across this photo taken by Clark Little and was wondering how he was able to shoot directly into the sun and yet still maintain good colour in the wave??

I was thinking that maybe he was using something like a graduated filter, but where the shaded area is circular and located in the centre of the filter (rather than horizontal like a regular filter)...if that makes any sense...??

Or maybe there was just so much light that a quick shutter speed was still ample..?

Any ideas?

Andrew.

Mod Edit Note, please refrain from posting other peoples photos due to copyright issues.