Sigma will announce their first Full Frame mirrorless “designed” lenses on July 11 at 9am London time! Thos lenses are newly designed lenses for mirrorless only. They are not adaptations of current DSLR lenses. They will be first announced as Sony E and Leica L-mount version. The Nikon Z version will be announced in late 2019.

This is the info posted by SonyAlphaRumors:

These three lenses will be announced:

35mm f/1.2
45mm f/2.8
14-24mm f/2.8

We know of a fourth lens which will be available in late 2019 but its’ unclear if it will be announced on July 11:

24-70mm f/2.8

What’s very new with these lenses:

They are exlusively designed for Full Frame mirrorless system (there will be no DSLR version of these)
Sony E-mount and L-mount version will be announced on July 11
Nikon Z and Canon EOS-R versions will be announced later

Some additional info:

14-24mm f/2.8 is smaller than the current DSLR version (here)
The new 35mm f/1.2 lens has:
– Premium construction
– Lot of HR elements in construction, record low aberrations
– Record MTF of any FF lens at F1.2
– Ultra fast and silent AF, made also for video

Here is the teaser image:

In Mid July Sigma will announce those four new lenses:

35mm f/1.2
45mm f/2.8
12-24mm f/2.8
24-70mm f/2.8 (this lens will be available later after the release of the other three lenses)

They should be available first for Sony E-mount and the L-mount. A Nikon Z version of these should be available from early 2020 on!

via MirrorlessRumors