Sigma

Sigma CR-202101R 10-20mm f/3.5 Canon Wide Angle Lens

5.0 (5 reviews)
f/3.5

Capture Expansive Scenes with Sigma 10-20mm LensThe Sigma 10-20mm f/3.5 EX DC HSM lens is a super-wide angle lens designed for Canon digital SLR cameras. Its constant f/3.5 aperture and advanced optical design make it ideal for capturing striking images with exaggerated perspective. Focal Length...

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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Capture Expansive Scenes with Sigma 10-20mm Lens

The Sigma 10-20mm f/3.5 EX DC HSM lens is a super-wide angle lens designed for Canon digital SLR cameras. Its constant f/3.5 aperture and advanced optical design make it ideal for capturing striking images with exaggerated perspective.

  • Focal Length: 10-20mm
  • Maximum Aperture: f/3.5
  • Lens Construction: ELD and SLD glass elements, Aspherical lenses
  • Focus Motor: HSM (Hyper-Sonic Motor)
  • Minimum Focusing Distance: 9.4 inches (24cm)
  • Maximum Magnification Ratio: 1:6.6
  • Compatibility: Canon Digital SLR Cameras (APS-C sensor)

Key Features

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com.

Super-Wide: 10-20 with maximum aperture of F3.5 throughout entire zoom range

Includes: Petal-type Hood supplied

Filter Size: 82mm

Specifications

Focal Length
10-20mm
Maximum Aperture
F3.5
Filter Size
82mm
Included Accessory
Petal-type Hood
Condition
Certified Refurbished

Pros & Cons

👍 Pros

  • Offers a super-wide 10-20mm focal range, ideal for capturing expansive landscapes, architecture, and interior shots.
  • Features a constant maximum aperture of F3.5 throughout the entire zoom range, providing consistent light gathering capabilities.
  • Certified Refurbished status ensures the product has undergone functionality testing, basic cleaning, inspection, and repackaging to look and work like new.
  • Includes a petal-type hood, which helps to reduce lens flare and protect the front element from impacts.
  • The 82mm filter size is common for wide-angle lenses, offering a range of compatible filters for creative control.

👎 Cons

  • As a Certified Refurbished product, it may arrive in a generic box and might show minor cosmetic imperfections.
  • The 82mm filter size means filters can be more expensive than those for smaller lens diameters.
  • The F3.5 aperture, while constant, is not as fast as some prime lenses, which could be a limitation in very low-light conditions.
  • This lens is a wide-angle specific, meaning it is not versatile for telephoto or portrait photography.

Frequently Asked Questions

A Certified Refurbished product means it has been tested and certified to look and work like new, undergoing functionality testing, basic cleaning, inspection, and repackaging by select sellers.
This Sigma wide-angle lens features a constant maximum aperture of F3.5 throughout its entire 10-20mm zoom range.
Yes, a petal-type hood is supplied with the Sigma CR-202101R 10-20mm f/3.5 Canon wide-angle lens.
The filter size for this Sigma 10-20mm f/3.5 Canon wide-angle lens is 82mm.
With its super-wide 10-20mm focal length, this lens is best suited for wide-angle photography, such as landscapes, architecture, and interior shots.