SIGMA 15mm F1.4 DG DN Diagonal Fisheye Art L Mount camera lens

World's first full-frame F1.4 diagonal fisheye

The Sigma 15mm F1.4 DG DN Diagonal Fisheye Art Lens is the world's first F1.4 diagonal fisheye interchangeable lens designed for 35mm full-frame cameras. It offers an ultra-wide 180-degree angle-of-view combined with an exceptionally fast aperture. This L-mount lens targets astrophotographers and creative landscape or architectural shooters who need high resolving power and unique distortion characteristics.

Outstanding optical performance

The optical construction uses 21 elements in 15 groups, including four FLD and three SLD low-dispersion glass elements. This design corrects various aberrations, especially sagittal coma flare, ensuring excellent point image reproducibility across the frame. High resolution is maintained even when shooting wide-open at F1.4, making it reliable for demanding low-light scenes such as astrophotography.

Dust and splash resistant structure with manual

A dust and splash resistant structure protects the lens internals during outdoor use in challenging environments. A Manual Focus Lock switch prevents accidental focus ring movement once focus is set, which is useful for long-exposure tripod work. These physical features support reliable operation in the field without adding electronic complexity.