Fast Aperture, Wide Angle. With a focal length equivalent to 36mm after crop factor, the Irix 45mm f/1.4 gives you a high-quality wide-angle lens that’s ideal for street photography, landscape shooting, and low-light applications. The wide f/1.4 aperture also enables you to capture images with a very shallow depth of field and great subject/background separation, while the 1.3-foot minimum focusing distance lets you get in pretty close.

Advanced Optics. The Irix 45mm f/1.4 Blackstone’s nine-group/eleven-element design includes one aspherical element, four high-refractive index elements, and one extra-low dispersion element that control distortions and aberrations while retaining sharpness and clarity at any focus distance.

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. The internal-focusing design means the lens maintains the same length during operation.

Premium Build. The 45mm f/1.4’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.