Sony FE 20mm f1.8 G Lens

The Sony FE 20 mm f/1.8 G is a premium wide‑angle prime lens designed for Sony full‑frame E‑mount mirrorless cameras, offering exceptional optical performance in a compact and lightweight form. With its wide 20 mm field of view and bright f/1.8 maximum aperture, this lens excels at landscape, architecture, astrophotography, travel, environmental portraiture, and cinematic video.

Sony’s advanced optical design delivers sharp resolution, excellent contrast, and smooth background separation—even when shooting wide open. Fast, accurate autofocus and near‑silent operation make it well suited for both stills and video. The lens balances performance and portability, making it an excellent choice for creators who want professional‑quality wide‑angle results without excess bulk.

Key Specifications

General

• Lens Type: Wide‑angle prime
• Mount: Sony E‑mount (FE full‑frame)
• Focal Length: 20 mm
• Maximum Aperture: f/1.8
• Minimum Aperture: f/22
• Series: Sony G

Optical Design

• Construction: 13 elements in 11 groups
• Special Elements:
  • 3 × ED (Extra‑Low Dispersion) elements for chromatic aberration reduction
  • 2 × Aspherical elements for distortion and aberration control
• Coating: Nano AR Coating to minimize flare and ghosting
• Aperture Blades: 9 (rounded diaphragm for smooth bokeh)

Autofocus & Focus

• Autofocus: Yes (linear autofocus system)
• Performance: Fast, precise, and quiet AF
• Minimum Focus Distance: 0.19 m (0.62 ft)
• Maximum Magnification: Approx. 0.21×
• Manual Focus Override: Yes (full‑time)

Imaging & Performance

• Angle of View: ~94° (full‑frame)
• Sharpness: Excellent edge‑to‑edge resolution even at wide apertures
• Bokeh: Smooth, pleasing out‑of‑focus rendering despite wide angle
• Low‑Light Capability: Strong performance thanks to f/1.8 aperture

Image Stabilization

• Optical OSS: ❌ No
• Relies on in‑body image stabilization (IBIS) in compatible Sony cameras

Physical & Handling

• Filter Thread: 67 mm
• Weight (Approx.): 373 g (13.2 oz)
• Dimensions (Approx.): 75 × 78 mm
• Build: Dust‑ and moisture‑resistant design
• Controls:
  • Focus ring with smooth travel
  • Well‑balanced handling for handheld use

Key Features

• Ultra‑wide 20 mm focal length for immersive wide‑angle imagery
• Bright f/1.8 aperture for strong low‑light performance and depth control
• Advanced optical design with ED and aspherical elements
• Smooth, cinematic bokeh
• Compact and lightweight—great for travel and everyday shooting
• G‑series optics with excellent sharpness and contrast

Ideal For

• Landscapes and cityscapes
• Astrophotography and night skies
• Travel and environmental portraits
• Documentary and street photography
• Cinematic video with wide perspective