[Klaus]

The first sample photos from Irix 15mm f/2.4 are now available on Flickr and 500px
www.flickr.com/irixlens/
https://500px.com/irixlens

 

Quite impressive if you ask me.

[Brightcolours]

Indeed, I agree it looks to be a pretty sweet lens.

[toni-a]

The more  I see sample pictures, the more I am convinced about ultrawides main use: architecture.

An affordable tilt and shift fast ultrawide would do wonders

[Rover]

The more  I see sample pictures, the more I am convinced about ultrawides main use: architecture.

An affordable tilt and shift fast ultrawide would do wonders

But there is a contradiction in your last sentence (actually, more than one).  :unsure:

[JJ_SO]

It's plain pointless to make a tilt-shift lens fast  ^_^

 

Without tripod nobody uses such a lens. So, the camera is already supported and doesn't need fast aperture. Next to it, you'd get so much unprecictable vignetting that you need long post-processing. Fast wide-angles are pretty difficult to focus and I doubt to make affordable as tilt-shift, for that kind of price you might have in mind.

 

Like helicopter-cars with batteries: doable, nice to have, but hardly cheap.