Sigma has announced that they will produce both NEX and m4/3 lenses.
19mm f/2.8 EX DN
- m4/3 mount (2x crop), NEX mount (1.5x crop)
- 8 elements in 6 groups, 3 aspherical
- 50 degree angle of view m4/3 (horz)
- apertures from f/2.8 to f/22, 7-blade diaphragm
- no image stabilization
- 8" (0.2m) minimum focus, autofocus, internal focus, 1:7.4 maximum magnification
- 46mm filter size, ?? lens hood
- 1.8" x 2.4" (45.7 x 60.6mm) long and diameter
- 4.9 ounces (140g)
- available in black
- Model number 19mmDN
Yes, this lens is available in two mounts with basically the same specifications.