Yes please. :)

Some tests for the 50mm Art...

http://photorumors.com/2014/02/27/first-sigma-50mm-f1-4-dg-hsm-art-lens-test/

Sigma already said that the performance of their new 50mm Art lens should be very close to the $4,000 Zeiss 55mm f/1.4 Otus Distagon T*.

OK, here is the first in-depth credible review I've seen for this lens. The verdict: it's every bit as good as expected.

http://www.imaging-resource.com/news/2014/04/04/sigma-50mm-f-1.4-art-lens-review-yes-it-really-is-that-good http://slrgear.com/reviews/showproduct.php/product/1677/cat/30

Conclusion

The Sigma 50mm f/1.4 Art is the most exciting lens we're likely to review this year. All competing lenses from Canon and Nikon fell short when compared to the resolving power of the 50mm Art. We haven't (yet) tested the very best from Zeiss, but we are confident Sigma will trounce it in one key area: price. This difference is likely to be a yawning chasm. Our expectation for pricing on this lens is for something at least a bit less than Canon's 50mm f/1.2 L, which goes for $1,700; despite a variety of rumors and no official price for the Sigma yet, we're expecting it'll be less than that..

Even if the price is 'merely' even with the best of Canon and Nikon, this lens is easy to recommend. Put simply: it trounces any similar model available for less than $4,000. If it comes in significantly cheaper than the best of Canon and Nikon, Sigma will have made a friend of every full-frame shooter in the land.

Those are difficult to believe numbers, brute resolve power!! A working class (m)otus?
@tetakpatak I'm happy that the once commonly regarded as cheap peeling company is showing sharpest teeth.
{LaFontaine, please} They've been (t)rained, now, they're are going to deliver some sweet /mother/ fucking mushrooms to you, watch out for the release of... The return of the optical wizard
- Motomichi what do you want to be when you grow up?
- I want to be optical wizzard!!! {speedy street razor music mixed with lysergic unicorns on spiral math formulas}

That price is much better than the Australian pre-order price.

Yep, preorder link at AU - http://www.adorama.com/SG5014RNK.html

Sigma said when the 18-35 came out that there was a new era of computer design in lenses on the horizon and it makes sense. I think they invented some software to improve the lens design process and are planning to kick a lot of ass in the coming years until others catch up.

Aren't they also the only ones still manufacturing in Japan? Makes sense they would shoot for the high end.

Minolta were the first to claim their lenses were calculated by the "Supercomputers" of their time – the prototypes of those lenses were presented in 1968!

Probably less power than your first pocket calculator …

Lol. Upset me? That's silly.

If I shoot and edit video on my phone, it's computer aided... hardly the same thing as if I used Black Magic's best deck and softtware. Lenses are getting far more complex because the tools are making the calculations easier.

Guys, I know there isn't a huge sample pool available yet - however so far from what I see, I prefer the rendering of the 'old' Siggy 50 - that lens already has tons of character and super creamy bokeh and hella lot cheaper.

For example: http://www.nikoncafe.com/xenf/index.php?threads/sigma-50-f1-4-photo-thread-warning-big-post.153147/page-60

@last_SHIFT

If you check tests it becomes pretty clear why new lens is better and cost more.