Sigma 15mm F1.4 DC Contemporary Lens for Canon RF-S Mount

Blending an ultra-wide perspective with a remarkably portable build, the Sigma 15mm f/1.4 DC Contemporary is an impressively compact and bright prime lens that delivers an expansive field of view. Well suited to landscapes, interiors, architecture, and astrophotography, it offers ambitious performance in a streamlined form. Designed for APS-C-format cameras, it provides a 22.5mm equivalent focal length, pairing its sweeping angle of view with a fast f/1.4 maximum aperture that excels in low light and enables precise depth of field control. The optical construction incorporates FLD and SLD glass elements to minimize chromatic aberrations and ensure accurate, vibrant color reproduction.

Three double-sided aspherical elements help suppress distortion and spherical aberrations while maintaining impressive sharpness and contributing to the lens's compact, lightweight design. The optics are engineered for strong edge-to-edge clarity and reduced sagittal coma flare, even when used wide open, while flare and ghosting are carefully controlled for reliable performance in bright, high-contrast scenes. A rounded nine-blade diaphragm produces smooth, pleasing bokeh. Compared to the 16mm f/1.4 DC Contemporary, this 15mm version is approximately 30 percent shorter and 50 percent lighter, measuring just 2.6 inches in length and weighing about 8 ounces, making it an easy addition to any kit.

Equally capable for stills and video, the balanced and lightweight design makes it especially suitable for gimbal work and vlogging. A stepping motor provides fast, quiet, and precise autofocus, and focus breathing is effectively minimized to maintain consistent framing during focus pulls. Built to handle demanding environments, the lens features a dust- and splash-resistant construction along with a water- and oil-repellent coating on the front element for easier cleaning. A manual aperture ring offers intuitive exposure control, with an A setting available for camera-based adjustment. A petal-shaped lens hood is included to reduce flare and offer added protection, and the lens integrates seamlessly with other Sigma f/1.4 DC primes to form a compact, cohesive system covering a broad range of focal lengths.