Gaël Vacher (website | 500px) was able to try the new Irix 11mm Blackstone lens (Nikon mount) at the “Salon de la Photo” show in Paris a few weeks ago. Here are his quick hands-on first impressions:
Here is some more information on the long rumored Irix 11mm f/4 lens for Nikon F mount: Update: at Photokina Irix also showed a prototype of a 45mm f/1.4 lens.