Sigma Aspherical Lens | 20mm 1:1.8 DG EX | Canon EF Mount

📝 Product Title : Sigma 20mm f/1.8 EX DG Aspherical RF Lens - Canon EF Mount Ultra-Wide Prime

📸 Description
The Sigma 20mm f/1.8 EX DG Aspherical RF is a fast, ultra-wide-angle prime lens designed for Canon EF-mount full-frame and APS-C DSLR cameras. With its exceptionally wide f/1.8 maximum aperture and high-quality aspherical glass elements, this lens is ideal for low-light photography, dramatic wide compositions, and creative depth-of-field effects. Its solid EX-series build quality and large front element make it a favorite among landscape, astro, and architectural photographers.

💡 Key Benefits

• 🌙 Ultra-fast f/1.8 aperture—rare for a 20mm lens

• 🌐 Expansive field of view ideal for landscapes and interiors

• 🔬 Aspherical lens elements for minimized distortion and edge softness

• 🧱 EX-series construction for durability and a professional feel

• 🎯 Compatible with Canon full-frame and APS-C DSLRs

⚙️ Features

• 🔍 Focal Length : 20mm

• 🌗 Aperture Range : f/1.8 to f/22

• 🔧 Mount Type : Canon EF (full-frame and APS-C)

• 🧠 Focus Type : Manual and autofocus

• 🧪 Optical Design : 13 elements in 11 groups with aspherical glass

• 🌈 Coating : DG multi-coating for reduced flare and ghosting

• 📐 Angle of View : Approx. 94.5° (on full-frame)

• 🧲 Filter Thread : 82mm

• 🏗️ Minimum Focus Distance : 20cm (excellent for creative close-ups)

📌 Condition
Lens is in very good condition , with clean glass, intact coating, and smooth focus/zoom operation. Minor external wear on the barrel may be present.

📦 What's Included

• Sigma 20mm f/1.8 EX DG Aspherical RF Lens (Canon EF Mount)
  

🌟 Overall Summary
The Sigma 20mm f/1.8 EX DG is a rare combination of ultra-wide perspective and ultra-fast aperture. Perfect for photographers who want dramatic compositions and excellent low-light capability in a solid, professional-grade package.

🔑 Keywords
Sigma 20mm f/1.8 EX DG, Canon EF wide lens, ultra wide-angle lens, fast wide prime, f/1.8 wide lens, Sigma aspherical lens, landscape photography lens, astro lens, full-frame wide-angle, EX DG lens Canon mount