The IRIX 11mm f/4.0 Blackstone Lens is an ultra-wide-angle rectilinear lens designed for full-frame (35mm) Canon EF-mount cameras. With an astonishing 126° angle of view, this lens allows you to capture breathtakingly expansive landscapes, dramatic cityscapes, and captivating interior shots.   

Unparalleled Image Quality

Crafted with precision and featuring exceptional optical design, the IRIX 11mm f/4.0 delivers stunning image quality. Its 16 elements arranged in 10 groups, including 4 high-refractive lenses, 2 ED lenses, and 3 aspherical elements, minimize distortion to an impressive 3.13%. This ensures sharp, detailed images with minimal chromatic aberrations.   

Smooth Bokeh and Exceptional Close-Focusing

The lens's f/4.0 aperture and 9 rounded aperture blades create a beautifully smooth bokeh effect, allowing you to isolate subjects and draw attention to key elements in your composition. Additionally, its minimum focusing distance of just 28cm enables you to capture captivating close-up shots with a unique perspective.   

Weather-Sealed Construction and Durable Design

Built to withstand the elements, the IRIX 11mm f/4.0 Blackstone Lens features a weather-sealed construction that protects the interior from dust, moisture, and accidental splashes. Its durable magnesium alloy body ensures long-lasting performance and reliable operation even in challenging conditions.   

Key Features:

Ultra-wide 126° angle of view   

Full-frame (35mm) format

Canon EF-mount

Aperture range: f/4 to f/22   

16 elements in 10 groups   

4 high-refractive lenses   

2 ED lenses   

3 aspherical elements   

Minimum focusing distance: 28cm   

Rounded 9-blade diaphragm

Weather-sealed construction

Magnesium alloy body

Manual focus design with focus lock

UV fluorescent engraved markings

Depth of field and focus distance scales