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You can buy the Sigma 30mm F1.4 Contemporary on Amazon - http://amzn.to/2B9KBEo
Link to the full review on LensVid.com (with all the test images and more):
https://lensvid.com/gear/lensvid-exclusive-sigma-30mm-f1-4-contemporary-dc-dn-lens-review/
From the article:
We recently tested the Sigma 19mm f/2.8 E mount lens and today we are going to look at its longer and faster sister the Sigma 30mm f/1.4 for E-mount.
Although this lens is not as small as the 19mm it is still pretty compact and offers a much faster aperture and a focal length which can be used for portraits (on APS-C we are looking at about 45mm equivalent focal length).
So after our raving review of the Sigma 19mm f/2.8 lens, the question here is the same - can this lens perform to the same high standard- especially given it's somewhat more challenging basic design - let's take a look.