
Sigma 411101 20mm f/1.8 Wide Angle Lens (Canon)
Capture Expansive Landscapes with the Sigma 20mm f/1.8 EX DG LensThe Sigma 20mm f/1.8 EX DG RF Aspherical Wide Angle Lens is designed for Canon digital SLR cameras, offering a broad field of view and exceptional image quality. Ideal for landscape, architecture, and astrophotography, this lens del...
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
Notice a mistake? Let Us Know
Overview
Capture Expansive Landscapes with the Sigma 20mm f/1.8 EX DG Lens
The Sigma 20mm f/1.8 EX DG RF Aspherical Wide Angle Lens is designed for Canon digital SLR cameras, offering a broad field of view and exceptional image quality. Ideal for landscape, architecture, and astrophotography, this lens delivers sharp, detailed images with minimal distortion.
- Mount: Canon Digital SLR
- Focus System: Clutch-like system for AF/MF switching
- Focus Ring: Wide manual focus ring
Specifications
Pros & Cons
👍 Pros
- Offers a very wide 20mm focal length, ideal for capturing expansive landscapes and architectural shots.
- Features a fast f/1.8 maximum aperture, allowing for excellent low-light performance and shallow depth of field effects.
- Designed as a wide-angle lens, minimizing distortion often associated with ultra-wide optics for a natural look.
- Its f/1.8 aperture contributes to bright viewfinder images, aiding in accurate composition in challenging lighting.
- Compatible with Canon cameras, providing a dedicated option for users within that system.
👎 Cons
- As a prime lens, it lacks the versatility of a zoom, requiring physical movement to change perspective.
- The wide f/1.8 aperture, while beneficial, makes the lens potentially larger and heavier than slower lenses.
- Specific information on image stabilization is not provided, which could be a disadvantage for handheld shooting in low light.
- Details on internal focusing or weather sealing are absent, making it difficult to assess its suitability for harsh environments.
- The 20mm focal length may be too wide for certain types of photography, such as portraits, where a longer focal length is often preferred.