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SIGMA 15mm F1.4 DG DN diagonal fisheye Art lens for L Mount, black cylindrical barrel with wide front element

SIGMA

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

SKU CH-C4PG-15E3W

A full-frame diagonal fisheye lens with an F1.4 aperture and 180-degree angle of view for L Mount

  • World's first full-frame F1.4 diagonal fisheye lens
  • Ultra-fast F1.4 aperture excels in low-light astrophotography
  • 180-degree angle of view captures immersive wide scenes
  • 21 elements in 15 groups with FLD and SLD glass
  • Dust and splash resistant structure with Manual Focus Lock switch

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.

Highlights

  • World's first full-frame F1.4 diagonal fisheye lens
  • Ultra-fast F1.4 aperture excels in low-light astrophotography
  • 180-degree angle of view captures immersive wide scenes
  • 21 elements in 15 groups with FLD and SLD glass
  • Dust and splash resistant structure with Manual Focus Lock switch

Specifications

No published specifications for this item yet.

Questions about this item

How do I mount the 15mm F1.4 DG DN Diagonal Fisheye Art lens on my L-mount camera and what step is often missed?

Align the lens mount index with the camera body index, rotate until it clicks, then set the Manual Focus Lock switch to the unlocked position before shooting; forgetting to unlock focus is the common error.

What maintenance will the 15mm F1.4 DG DN Diagonal Fisheye Art lens need over time?

Clean the front and rear glass with a blower and microfibre cloth; the dust and splash resistant structure protects internal elements, so no routine internal service is required.

What limit appears first when using the 15mm F1.4 DG DN Diagonal Fisheye Art lens for long astrophotography sessions?

The F1.4 aperture and 180-degree angle of view gather maximum light, so sensor heat and battery drain become the practical limits before the 21-element optical system shows any degradation.

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