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Producing an expansive 180° angle of view, the Pentax K-mount 15mm f/2.8 EX DG Diagonal Fisheye Lens from Sigma offers a super-wide perspective for creative applications. As a diagonal fisheye, this lens produces a notably distorted image that fills the entire frame, and its minimum focusing distance of 5.9" allows for working with unique perspectives with close-up subjects. Additionally, the bright f/2.8 maximum aperture benefits working in difficult and low-light conditions by allowing the use of faster shutter speeds.

Diagonal fisheye lens is designed for full-frame Pentax K-mount cameras, however can also be used with APS-C models where it provides a 22.5mm equivalent focal length.

Bright f/2.8 maximum aperture facilitates working in difficult lighting conditions.

Expansive 180° angle of view pairs with the fisheye design to render imagery with distorted, curved lines. As a diagonal fisheye, the image fills the entire rectangular frame.

Multi-layer coating has been applied to individual elements to suppress flare and ghosting for improved contrast and color when working in strong lighting conditions.

Minimum focusing distance of 5.9" benefits working with close-up subjects and allows for producing highly exaggerated perspectives.