Sigma 15mm F1.4 DG DN Diagonal Fisheye Art

Description

The Sigma 15mm F1.4 DG DN Diagonal Fisheye Art is the world's first full-frame f/1.4 diagonal fisheye prime lens, delivering an expansive 180-degree field of view with edge-to-edge optical clarity. Optimized for astrophotography, architecture, and landscapes, its complex optical construction of 21 elements in 15 groups incorporates FLD, SLD, and aspherical elements to suppress sagittal coma flare and chromatic aberrations. Dedicated astrophotography features include a Manual Focus Lock switch, a built-in lens heater retainer, a rear filter holder, and a click-switchable aperture ring. The lens comes complete with a removable tripod socket, front cover cap, rear cap, protective cover, and carrying case.

Pros & cons

• +Pro: Extremely bright f/1.4 maximum aperture combined with outstanding corner-to-corner sharpness across the full 180° field of view.
• +Pro: Dedicated astrophotography features including a manual focus lock, rear filter holder, and built-in lens heater retainer.
• −Con: Substantial weight and bulk make it heavy to carry for extended handheld shooting.
• −Con: Bulbous front element prevents the use of standard screw-on front filters.