The Sigma 30mm DC DN f/1.4 Contemporary lens (along with the Sigma DC DN 16mm f1.4 & 56mm f1.4 Contemporary Prime lenses), is voted one of the sharpest lenses for the Sony E-mount interchangeable camera system by DXOmark.com. It is even sharper than the Sony E 35mm f/1.8 and the Carl Zeiss Touit 32mm f/1.8!
Sony FE Lenses: The honest Guide for the A7/A9/A1 Series
Top 10 Sony A6000 Lenses
Sigma 30mm f/1.4 DC DN C Lens Review
Sigma 30mm F1.4 DC DN Contemporary Lens Review
Sigma 30mm F1.4 DC DN C Review - Sample Images
Sigma 30mm 1.4 Sony Sample Images [Photo Gallery] Versatile Street/Landscape/Portrait/Low-Light Lens
Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E (402965) Black : Electronics
Sigma 30mm f/1.4 E Mount Sample Images & Review from Sony Alpha Photographers
Sigma 30mm F1.4 DC DN Review - Sony Photo Review
The $199 Sigma 30 f/2.8 Real World Lens Review on the Sony NEX-7! Bang for the Buck of the year!
A new large-aperture F1.4 standard lens from the Contemporary lineOffering an opportunity to experience the fun of shooting wide open - with F1.4 brightnessSIGMA 30mm F1.4 DC DN | Contemporary large-aperture standard lens gives owners of mirrorless cameras the opportunity to experience the fun of shooting wide open - with F1.4 brightness.
Sigma 30mm f-1.4 DC DN Contemporary Lens for Sony E
30mm F1.4 DC DN, Contemporary, Lenses
Sigma 30mm f/1.4 DC DN C Lens Review