Overview
The Sigma 12mm f/1.4 DC Contemporary Lens (Canon RF) is a fast, ultra-wide-angle prime designed for APS-C Canon RF-mount mirrorless cameras. With a 19.2mm full-frame equivalent focal length, it delivers an expansive field of view, making it ideal for landscapes, street photography, interiors, and vlogging.
Its bright f/1.4 aperture enables excellent low-light performance and attractive background separation. A stepping motor provides fast, smooth, and quiet autofocus with minimal focus breathing, while the compact and lightweight design makes it perfect for travel and handheld shooting.
Core Features
- Ultra-wide 12mm focal length provides a 19.2mm full-frame equivalent perspective for expansive compositions.
- Bright f/1.4 aperture enables strong low-light performance and shallow depth of field control.
- Stepping motor autofocus system ensures fast, quiet, and precise focusing for photo and video use.
- Advanced optical design with aspherical and SLD elements minimises distortion and chromatic aberrations.
- Compact and lightweight construction makes it ideal for travel, gimbal work, and everyday use.
- Rounded 9-blade diaphragm produces smooth and pleasing bokeh.
- Dust- and splash-resistant build enhances durability in outdoor environments.
- Water- and oil-repellent coating protects the front element from smudges and moisture.
Optical Performance
The lens incorporates 14 elements in 12 groups, including three double-sided aspherical elements to reduce distortion and maintain sharpness across the frame. Two SLD elements help minimise chromatic aberrations and colour fringing, delivering clear, high-contrast images with accurate colour reproduction.
Design & Handling
As the lightest lens in Sigma’s f/1.4 DC Contemporary prime series, this model is highly portable and easy to carry. It is approximately 20% shorter than the Sigma 16mm f/1.4, making it easy to fit into compact camera bags. The integrated control ring allows quick and intuitive adjustment of key settings.
- Compact size: approx. 6.74 cm length for easy portability.
- Lightweight build: approx. 250 g for comfortable handheld use.
- 62 mm filter thread supports a wide range of accessories.
Close-Up Capability
With a minimum focusing distance of 17.2 cm and 0.12x magnification, this lens enables creative close-up shots while maintaining a dramatic ultra-wide perspective.
Optical
| Focal Length | 12mm |
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Angle of View | 96.4° |
| Lens Format Coverage | APS-C |
| Optical Design | 14 Elements in 12 Groups |
| Aperture Blades | 9, Rounded |
Focus
| Minimum Focus Distance | 17.2 cm |
| Magnification | 0.12x (1:8.4) |
| Focus Type | Autofocus |
Features
| Image Stabilization | No |
| Filter Size | 62 mm (Front) |
| Lens Mount | Canon RF |
Physical
| Dimensions (ø x L) | 6.9 x 6.7 cm |
| Weight | 250 g |
Packaging Info
| Package Weight | 0.56 kg |
| Box Dimensions (LxWxH) | 21.1 x 10.9 x 9.7 cm |
What's Included
- Sigma 12mm f/1.4 DC Contemporary Lens (Canon RF)
- Lens Cap (62mm)
- Rear Lens Cap
- LH652-01 Lens Hood
- Lens Pouch
- Barcode: 84658
- UPC Barcode: 085126416720
- Supplier Code: 4416972