The Sigma 30mm f/1.4 DC DN | Contemporary is part of the first wave of authorized third-party autofocus lenses for the Canon RF mount. Unlike earlier versions for other mounts, this lens features a newly developed control algorithm that optimizes AF drive and communication speed specifically for Canon cameras, ensuring full compatibility with high-speed Servo AF and in-camera aberration correction.
Optically, the lens punches well above its weight, utilizing two aspherical elements and high-refractive index glass to maintain edge-to-edge sharpness while keeping the lens remarkably small. The bright f/1.4 aperture is a game-changer for crop-sensor shooters, allowing for clean handheld images in near-darkness and a level of background blur (bokeh) typically reserved for full-frame systems. Built with Thermally Stable Composite (TSC) and featuring a rubber-sealed brass mount, it is a durable, weather-resistant tool designed for street photography, portraits, and high-quality vlogging.
Technical Specifications
Mount Type: Canon RF-Mount (APS-C / RF-S)
Format: APS-C / DC
Focal Length: 30mm (48mm Full-Frame equivalent)
Maximum Aperture: f/1.4
Minimum Aperture: f/16
Lens Construction: 9 elements in 7 groups (including 2 aspherical elements)
Angle of View: 48.2°
Focusing System: Stepping Motor (STM) with Internal Focus
Special Features: Optimized AF for Canon RF, In-camera correction support
Minimum Focus Distance: 30 cm (11.8 in)
Maximum Magnification: 1:7 (0.14x)
Diaphragm Blades: 9 (rounded)
Coating: Super Multi-Layer Coating
Filter Attachment Size: 52 mm
Dimensions: Approx. 69.0 mm x 71.3 mm (2.7 in. x 2.8 in.)
Weight: Approx. 285 g (10.1 oz)
In the Box:
Sigma AF 30mm F1.4 DC DN Contemporary Lens for Canon RF-mount
Petal-Type Lens Hood
Front Lens Cap
Rear Lens Cap
User Manual