20mm F1.4 DG HSM | A Refurbished
As low as $679 Regular Price $899
SKU: #
412-R
- Ultra-wide-angle lens with F1.4 brightness
- Incredible rendering performance
- Ideal for landscapes and starry skies
- Advanced optical design minimizes distortion
- Minimized chromatic aberrations
- Exclusive low-dispersion glass
- Super Multi-Layer Coating reduces flare and ghosting
- Hyper Sonic Motor (HSM) for silent, fast autofocus
- Full-time manual focus
- Rounded 9-blade diaphragm
Awards
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2016 TIPA: 20mm F1.4 Art
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2016 Lucie Technical Awards: 20mm F1.4 Art
Related Blog Posts
- Lens Construction
- 15 elements in 11 groups ?Lens Construction
- Angle of View
- 94.5°
- Number of Diaphragm Blades
- 9 (rounded)
- Maximum Aperture
- F1.4
- Minimum Aperture
- F16
- Minimum Focusing Distance
- 27.6 cm / 10.9 in.
- Filter Size
- N/A
- Maximum Magnification
- 1:7.1
- Weight
- 950g / 33.5 oz.
- Dimensions (Diameter x Length)
- 90.7 x 129.8mm / 3.6 x 5.1 in.
Firmware Information
Learn more about the latest firmware.
View FirmwareCamera Compatibility
Check compatibility of lenses with your camera make and model.
View CompatibilityGeometrical MTF Chart
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10 lines per millimeter measure the lens?s contrast ability ( red lines), repeating fine parallel lines spaced at 30 lines per millimeter measure the lens?s sharpness ability (green lines), when the aperture is wide open.
Diffraction MTF Chart
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Diffraction MTF takes diffracted light at every aperture into account which is very close to actual image data. Geometrical MTF does not consider the diffraction quality of light, yet it tends to show higher values than actual image.
Diffraction MTF Chart
?
Diffraction MTF takes diffracted light at every aperture into account which is very close to actual image data. Geometrical MTF does not consider the diffraction quality of light, yet it tends to show higher values than actual image.
Vignetting
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Vignetting
The horizontal axis shows the image height (the distance from the center to the edge of the image [mm]). The vertical axis shows the amount of light in the image (based on the amount of light in the image center being 100%)
Relative Distortion
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Relative Distortion The image will be seen as expanded (barrel distortion) in negative values or will be seen as a recessed (pincushion distortion) in positive distortion values.
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