Detail setting in Picture Profile Settings of EX1/EX3

Hi guys, can anybody please elaborate briefly on their understanding of the DETAIL settings in the Picture Profile settings of the EX1/EX3? Closely looking at the picture it appears to sharpen the image when turned on, and when turned off again, leaves a softer image (much like a silk stocking effect?)

I usually shoot with a profile created by a chap called Bill Raverns with a Letus Ultimate unit. However recently shot a TVC using just the default Picture Profile setting. I found myself tearing my hair out because the focus seemed soft and I was trying to re-calibrate the lens adaptor like a crazy man, but when I switched back on the DETAIL setting (by accident), the image was sharp as I expected.

What is the camera doing to the image when turned on, and when left off, I can't seem to sharpen the image back in post... So just wondering what the point of turning it off would ever be?

Cheers,
Tom

Camera Operator - Editor - Motion Graphics
(http://www.tomdavid.com.au)