Astrophotography
Sigma A 35 mm f/1.4 DG HSM f/1.4 Canon EF
Sony Full frame
Sony 20 mm f/2.8
This is a full-frame prime lens for Sony A, covering 20 mm and a maximum aperture of f/2.8. It weighs 285 g, and was released in 2006. That combination suits landscape and architecture photography.
It is a prime lens designed for full frame cameras. This wide-angle prime lens features a f/2.8 maximum aperture, making it ideal for landscape, architecture, astrophotography. The optical design incorporates 10 elements in 9 groups, ensuring sharp image quality and minimal distortion. Despite its robust professional construction, the lens delivers exceptional optical performance.
- f/2.8
- Aperture
- 20mm
- Focal
- 285 g
- Weight
- Jun 2006
- Released
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Good for landscapearchitecture
Astrophotography
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Specification
- Focal length
- 20 mm
- Maximum aperture
- f/2.8
- Minimum aperture
- f/22
- Number of diaphragm blades
- 7
- Optical construction
- 10 elements in 9 groups
- Minimum focusing distance
- 0.25 m (9.84 inches)
- Filter size
- 72 mm
- Lens mount
- Sony A
- Dimensions
- 78 x 53.5 mm
- Weight
- 285 g (10.05 oz)
- Lens type
- Prime lens
- Max Format size
- Full frame
- Usage
- Landscape, Architecture, Astrophotography
Wide open at 2 m, background blur ≈ 0.2% of the frame width
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Video reviews
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Similar lenses
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