Irix 15mm f/2.4 Wide-Angle Prime Lens for Sony E Full-Frame

With a 110° diagonal angle of view and a bright f/2.4 maximum aperture, the Irix 15mm f/2.4 captures expansive, dramatic perspectives on full-frame Sony E-mount cameras. The advanced optical design—15 elements in 11 groups including 3 HR, 2 ED, and 2 aspherical elements—ensures edge-to-edge sharpness and minimal distortion, while Irix's Neutrino coating suppresses flare and ghosting for high-contrast images even in challenging light.

Overview

Built for landscape, architecture, astrophotography, and interior photography, the Irix 15mm f/2.4 is a manual focus prime lens that combines rugged construction with precise optical performance. Its all-metal aluminum-magnesium alloy barrel is weather-sealed at three critical points, protecting against dust and moisture. The lens features a smooth, well-damped focus ring with a focus lock mechanism, hyperfocal scale, and depth of field markings for quick zone focusing. A rear gel filter slot accepts 30x30mm filters, complementing the large 95mm front filter thread.

What stands out

• Ultra-wide 110° angle of view for immersive compositions
• Bright f/2.4 maximum aperture for low-light and shallow depth-of-field control
• Advanced optical design with 3 HR, 2 ED, and 2 aspherical elements
• Weather-sealed construction (3 seals) for reliable outdoor use
• Focus lock, hyperfocal scale, and depth of field scale for precise manual focusing
• Rear gel filter slot plus 95mm front filter thread

Technical details

• Lens type: Wide-angle prime lens
• Focal length: 15mm
• Maximum aperture: f/2.4
• Minimum aperture: f/22
• Lens mount: Sony E
• Format compatibility: Full-frame
• Angle of view: 110° (diagonal)
• Optical design: 15 elements in 11 groups
• Special elements: 3 HR, 2 ED, 2 aspherical
• Diaphragm blades: 9, rounded
• Minimum focus distance: 0.28 m (11.02 inches)
• Maximum magnification: 1:7.1
• Focus type: Manual focus
• Image stabilization: No
• Filter size (front): 95 mm
• Rear filter slot: Yes (30x30mm gel filter)
• Weather sealing: Yes (3 seals)
• Construction material: Aluminum-magnesium alloy
• Coating: Neutrino coating
• Features: Focus lock, hyperfocal scale, depth of field scale

Our verdict

The Irix 15mm f/2.4 is a superb ultra-wide prime for Sony E-mount photographers who demand optical excellence and rugged reliability. Its combination of a fast aperture, advanced glass, and weather sealing makes it a top choice for landscape and astrophotography.