Sigma 17-40mm f/1.8 DC Art Lens

The Sigma 17-40mm f/1.8 DC Art lens is the world's first fast wide-to-standard zoom to achieve a constant f/1.8 aperture across its full focal range — a breakthrough that opens up extraordinary creative possibilities for APS-C mirrorless and DSLR shooters. Building on the acclaimed Sigma 18-35mm f/1.8 Art (the original f/1.8 zoom), this next-generation lens extends the wide end to 17mm, adds more reach at 40mm, and sheds over 30% of the weight — making it dramatically more portable without sacrificing optical performance.

• Focal Length: 17-40mm (APS-C format) — approximately 26-60mm equivalent on full-frame
• Maximum Aperture: f/1.8 constant throughout the entire zoom range — exceptional for low-light and depth-of-field control
• Optical Design: Art-series optical formula featuring Sigma's highest-grade glass including FLD, SLD, and aspherical elements
• Stabilization: Compatible with in-body stabilization (IBIS) systems on supported camera bodies
• Focus: Stepping motor (STM) for smooth, quiet autofocus ideal for video and stills
• Build: Sigma Art-series construction with weather sealing for field use
• Mount: Available in multiple mounts (Sony E, Fujifilm X, and others — confirm mount with your camera system)

The Sigma 17-40mm f/1.8 DC Art is a compelling single-lens solution for travel, street, portrait, event, and video work — replacing an entire bag of primes with one fast, versatile zoom. Wide open at f/1.8, you get beautifully blurred backgrounds and cinematic subject separation that most standard zooms simply cannot achieve. Ideal for documentary shooters, wedding photographers, and any creator who demands prime-quality light-gathering in a zoom package.

Questions? Contact us at sales@impulsemke.com or stop by our Milwaukee store.