Very Wide Angle. The Irix 15mm f/2.4 Blackstone for Nikon is really, really wide. Like really wide. Like 110° angle of view wide. Because its field of view is exactly 110°. Its minimal distortion makes it an excellent choice for architecture and landscape photography. Using a DX camera? You’ll have a focal length equivalent to 22.5mm.

Very Close Focus. When this lens’s wide perspective is coupled with its 11.02-inch minimum focusing distance, foreground subjects become exaggerated, creating a broad sense of space in the image.

Advanced Optics. The Irix 15mm f/2.4 Blackstone’s fifteen-element/eleven-group design includes two aspherical elements, three high-refractive index elements, and two extra-low dispersion elements that control distortions and aberrations while retaining sharpness and clarity at any focus distance. The Neutrino coating controls ghosting and flare for a color-neutral image.

Premium Build. The 15mm f/2.4’s durable aluminum and magnesium-alloy housing boasts an anti-scratch finish and high-visibility depth-of-field scales. Its weather-resistant construction includes internal seals to guard against dust and moisture, and an additional seal to protect the front element.

Modern Manual Focus. This fully manual-focus lens features a positive focus lock mechanism to help prevent focus shifting, while a hard click stop indicates the infinity position on the focus ring for easy use when you’re working in low-visibility conditions.