Actually you guys can request for the Transition lens boxes. It always have different company produce transition lens. One of them is Younger Optics.
And of cos Transition lens is expensive because of the cost of making it. They do have photochromic lens in the market. You just need to find the right optical shops.

Cheers mate.
From Optical line

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Added on August 10, 2011, 11:03 amIn order to identify whether you guys get the genuine transition lens... Bring it to outdoor with sun UV for 5 minutes, and bring it back to indoor. If the lens turn out to be all white.. its the genuine.

This post has been edited by kiathoong: Aug 10 2011, 11:03 AM

Cheappppp