Preorders:
In USA at Amazon. BHphoto. Adorama. FocusCamera.
In Europe at CalumetDE. WexUK.
Here is Lok’s take on the new lens:
And also Photographyblog posted their full lens review:
Despite offering a world-beating combination of F2.8 and 12-24mm, it’s still incredibly light, compact and most importantly very high quality indeed.