Sigma has announced that five of its Sony E-Mount Art-series primes, announced earlier this year, are now shipping. The 20mm F1.4 DG HSM, Sigma 24mm F1.4 DG HSM, Sigma 35mm F1.4 DG HSM, Sigma 50mm F1.4 DG HSM and 85mm F1.4 DG HSM are designed for Sony’s full-frame a7-series and a9 mirrorless interchangeable lens cameras.
The E-Mount version of Sigma’s 14mm F1.4 DG HSM (shown above, in prototype form) is expected later this summer, along with E-Mount versions of the recently-announced 70mm F2.8 Macro, and the 105mm and 135mm Art-series telephotos.
Optically the E-mount primes are unchanged compared to their DSLR-mount predecessors but are compatible with high-speed continuous autofocus and should offer faster data throughput compared to using a DSLR-mount version with an adapter. This should improve autofocus speed across the board, compared to using a DSLR-mount version with an adapter – something we hope to test for ourselves in the coming weeks.
via DP Review