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  1. Sigma is introducing two new wide-angle fixed focal lengths for full-frame cameras (L-mount and Sony E-mount), the SIGMA 20mm F1.4 DG DN and SIGMA 24mm F1.4 DG DN. Both lenses will be launched by end of August and will cost $ 899 / (SIGMA 20mm F1.4 DG DN) and $ 799 (SIGMA 24mm F1.4 DG DN). Both lenses are available for pre-order at B&H: SIGMA 20mm F1.4 DG DN @ B&H SIGMA 24mm F1.4 DG DN @ B&H For both lenses, Sigma emphasizes that are suitable for astrophotography. Product Images SIGMA 20mm F1.4 DG DN Product Images SIGMA 24mm F1.4 DG DN SIGMA 20mm F1.4 DG DN / SIGMA 24mm F1.4 DG DN at a glance Lens construction 17 elements in 15 groups, with 2 SLD, 3 aspherical lens elements (Sigma 20mm) 17 elements in 14 groups, with 2 FLD, 1 SLD, 4 aspherical lens elements (Sigma 24mm) Inner focus system Compatible with high-speed autofocus Stepping Motor Front filter thread 72mm (Sigma 24mm) / 72mm (Sigma 20mm) Compatible with Lens Aberration Correction Function available on supported cameras only. Available corrections and auto correction functionality may vary depending on the camera model. On cameras where lens aberration correction is controlled with “ON” or “OFF” in the camera menu, please set all aberration correction functions to “ON” (AUTO). Support for DMF and AF+MF Compatible with AF assist (Sony E-mount only) Nano porous coating Super Multi-Layer Coating Water- and oil-repellent coating Aperture ring Aperture ring click switch Aperture ring lock switch AFL button Programmable function only on compatible cameras. Available functions may vary depending on the camera used. Manual Focus Lock (MFL) switch Rear filter holder Focus mode switch Support for switching between linear and non-linear focus ring settings (L-Mount only) Petal-type lens hood with lock (LH782-01) Dust- and splash-resistant structure Compatible with SIGMA USB DOCK UD-11 (sold separately, L-Mount only) Designed to minimize flare and ghosting Every single lens is evaluated with SIGMA’s proprietary MTF measuring system 11-blade rounded diaphragm High-precision, durable brass bayonet mount “Made in Japan” craftsmanship
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