Irix 15mm f/2.4 Blackstone Ultra-Wide Prime Lens for Canon EF (Weather-Sealed, Manual Focus)

Landscape photographers chasing sweeping vistas and astrophotographers capturing the Milky Way rely on the Irix 15mm f/2.4 Blackstone for its ultra-wide perspective and fast aperture. Built for Canon EF full-frame bodies, this manual focus prime delivers edge-to-edge sharpness and robust weather sealing for demanding outdoor shoots.

Key specifications

• Focal length: 15mm
• Maximum aperture: f/2.4
• Minimum aperture: f/22
• Lens mount: Canon EF
• Format compatibility: Full-frame
• Angle of view: 110° diagonal
• Minimum focus distance: 0.28 m
• Maximum magnification: 0.11x
• Optical design: 15 elements in 11 groups
• Special elements: 3x HR, 2x ED, 2x aspherical
• Diaphragm blades: 9 rounded
• Filter size: 95 mm (front), 30x30 mm gel filter slot (rear)
• Focus type: Manual focus
• Image stabilization: No
• Weather sealing: Yes (3 seals)
• Construction: Magnesium-aluminum alloy
• Special features: Focus lock, hyperfocal scale, infinity click, UV reactive engravings
• Lens series: Blackstone

Why choose it

The Blackstone edition combines premium optics with a rugged, weather-sealed body. Its fast f/2.4 aperture excels in low light, while the ultra-wide 110° field of view captures expansive scenes with minimal distortion. Manual focus with a hyperfocal scale and focus lock ensures precise control for critical compositions.

Ideal use cases

• Landscape and architecture photography
• Astrophotography and night sky imaging
• Interior and real estate photography
• Creative wide-angle portraiture

Good to know

The lens features a rear gel filter slot for ND or color correction filters without vignetting. The UV reactive engravings glow under UV light, aiding focus adjustments in dark conditions.