/product/sigma-af20mm-f1-4-dg-dn-sony-e/
Specifications
Features
Description
Camera Type
Mirrorless (Sony E-mount, L-Mount)
Corresponding Mount
Sony E-mount, L-Mount
Angle of View
NA
Number of Diaphragm Blades
11 (Rounded)
Minimum Focusing Distance
NA
Maximum Magnification Ratio
NA
Dimensions (Diameter × Length)
Sony E-mount: 3.5 in × 4.5 in / 87.8mm × 113.2mm; L-Mount: 3.5 in × 4.4 in / 87.8mm × 111.2mm
Weight
Sony E-mount: 22.3 oz / 630g; L-Mount: 22.5 oz / 635g
Supplied Accessories
Case, Petal Type Hood with Lock (LH878-04), Front Cap (LCF-82 III), Rear Cap (LCR II), Guide Plate (GP-21)
REAR CAP LCR
Included (Rear Cap LCR II)
TRIPOD SOCKET TS-145
NA
PROTECTIVE COVER PT-45
NA
Edge-to-Edge Sharpness
Yes, delivers highly detailed images with exceptional sharpness from center to corners.
Megapixel
NA
Brust Speed
NA
Stills base ISO
NA
Autofocus
Yes, HLA (High-response Linear Actuator) for high-speed, quiet, and accurate autofocus.
Advanced Optical Construction
Yes, 17 elements in 15 groups, including 2 SLD, 3 aspherical elements, and a large double-sided aspherical front element.
High Precision & Aberration Correction
Yes, suppresses sagittal coma flare, chromatic aberration, and distortion.
F1.4 Aperture with Full Image Quality
Yes, maintains breathtaking sharpness across the image at F1.4.
Sagittal Coma Flare Correction
Yes, rigorously suppresses sagittal coma flare for pinpoint star rendering.
Anti-Ghosting & Flare Resistance
Yes, Super Multi-Layer Coating and Nano Porous Coating (NPC) reduce flare and ghosting.
Engineered for Extreme Performance
Yes, dust and splash-resistant structure for demanding conditions.
Exceptional Image Reproducibility
Yes, achieves high point-image reproducibility for detailed imaging.
World’s Widest F1.4 Prime Lens
Yes, the first 20mm F1.4 lens for full-frame mirrorless cameras.
Ideal for Astrophotography
Yes, optimized for capturing stars as clear, precise pinpoints of light.
Ultra-Wide 14mm Focal Length
NA
Bright F1.4 Aperture
Yes, exceptional brightness for low-light shooting.
High Optical Performance
Yes, delivers overwhelming optical performance with high contrast and rich colors.
Correction of Sagittal Coma Flare
Yes, ensures sharp rendering of point light sources.
High-Speed Autofocus with HLA Motor
Yes, features HLA for fast, quiet, and precise autofocus.
Versatility
Yes, ideal for astrophotography, landscapes, architecture, and environmental portraits.
Expressive Image Quality
Yes, offers unlimited potential for ultra-wide-angle creativity with shallow depth of field.