20mm F1.8 EX DG ASPHERICAL RF
Available mounts
- SIGMA SA-mount
- Canon EF mount
- Nikon F mount
- Sony A-mount
- Pentax mount
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Camera Type
DSLR
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Corresponding Mount
SIGMA SA-mount, Canon EF mount, Nikon F mount, Sony A-mount, Pentax mount
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Sensor Format
Full-frame [DG]
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Lens Construction
13 Elements in 11 Groups
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Angle of View
94.5°
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Number of Diaphragm Blades
9 Blades
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Minimum Aperture
F22
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Minimum Focusing Distance
20cm/ 7.9in.
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Maximum Magnification Ratio
1：4
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Filter Size
⌀82mm
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Dimensions (Diameter × Length)
⌀88.6mm×89.5mm/ 3.5in.×3.5in.
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Weight
520g/ 18.3oz.
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Supplied Accessories
Case, Hood (LH875-02)
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Mount / Product Barcode
SIGMA SA-mount：00-85126-41140-4 (discontinued)
Canon EF mount：00-85126-41127-5 (discontinued)
Nikon F mount：00-85126-41144-2 (discontinued)
Sony A-mount：00-85126-41134-3 (discontinued)
Pentax mount：00-85126-41145-9 (discontinued)
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Camera Compatibility
LINK
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* All figures calculated by Sigma SA-mount.
Lens construction
Aspherical lens