I didn’t buy the Irix Blackstone 11mm f/4 because of its optical qualities even though they are more than satisfactory. Truth be told, I wanted to experience what it would be like to shoot ultra wide-angle (UWA) for the sheer fun of it.
There are plenty of reviews for this lens, so this article has a different aim. I will share some images and a few words on how it feels to use the lens. In addition, I will mention a few ideas on how to take advantage of the wide-angle distortion.
Even though this is a rectilinear lens there will be distortions. An UWA lens will stretch the edges, and it will diminish objects in the middle of the frame.
The Irix’ maximum angle of view is a whopping 126 degrees, so you have to be careful how you place both your and your tripod’s feet.