Oakley Grey Vs. Black Iridium Lenses

[AngelAir]

Can someone tell me the difference in grey and black iridium lenses?
Is there any difference in light transmission? Anyone have a pic so I could see the difference in color?
Thanks

 

[Duke Nivram]

black is grey with an iridum coating and yes it is darker. this link will show you all the light transmission diffrences

http://www.oakley.com/innovation/optical-superiority/lens-tints

 

[THE X-MAN]

BLACK IRIDIUM HAS A MIRRORED FINISH AND IS THE DARKST LENS OAKLEY PRODUCES WITH A 9% LIGHT TRANSMISSION

 

[AngelAir]

OK I think that I had some grey yrs ago. Nice lenses and no coating to scratch, or at least not as easily.
Oakley is showing the grey in stock for $55.

A comparison pic would be nice. Anyone??