A revolutionary addition to the world of photography, the 15mm f/1.4 Dg Dn Diagonal Fisheye Art Lens offers a unique blend of ultra-wide-angle and powerful fisheye distortion. This lens is the world's first F1.4 diagonal fisheye interchangeable lens designed for 35mm full-frame cameras, offering unparalleled resolving power that challenges traditional perceptions of fisheye lenses.The Sigma 15mm F1.4 Dg Dn Diagonal Fisheye Art Lens is meticulously crafted for astrophotography, a field that requires exceptionally high-quality performance. It features an innovative optical design that corrects various aberrations, especially sagittal coma flare, ensuring excellent point image reproducibility and high resolution across the entire image, even when wide-open.This lens is not just for astrophotographers. Its ultra-fast F1.4 aperture and 180-degree angle-of-view make it perfect for capturing breathtaking landscapes and architectural marvels.