IRIX 11mm f/4 Firefly Lens for Nikon F

Ultra-Wide Angle Lens for Nikon F-Mount Cameras

Overview

The IRIX 11mm f/4 Firefly Lens for Nikon F-mount is an ultra-wide-angle lens designed for photographers who need to capture expansive scenes with minimal distortion. With its 11mm focal length, this lens provides a sweeping 126° field of view, making it ideal for landscapes, architecture, astrophotography, and interior photography. The Firefly version is the lightweight and more affordable option in the IRIX lineup, offering the same advanced optical performance as its more robust Blackstone counterpart, but with a more lightweight and ergonomic design.

Key Features

Ultra-Wide 11mm Focal Length

• Expansive Field of View: The 11mm focal length offers a vast 126° angle of view, allowing you to capture wide vistas, large architectural structures, and immersive interiors with ease. It’s perfect for creating dramatic, wide-angle compositions that draw the viewer into the scene.
• Minimal Distortion: Despite its ultra-wide focal length, the lens is engineered to minimize distortion, maintaining straight lines and edges, which is particularly important in architectural photography.

f/4 Aperture

• Consistent Performance: The f/4 aperture is well-suited for a wide range of lighting conditions, providing a good balance between depth of field and low-light capability. It allows for sufficient light gathering while maintaining a compact and manageable size.

Advanced Optical Design

• High-Quality Optics: The lens is constructed with 16 elements in 10 groups, including four high-refractive elements, two ED (Extra-low Dispersion) elements, and three aspherical elements. These elements work together to reduce chromatic aberrations, distortions, and flare, delivering sharp, high-contrast images.
• Neutrino Coating: The IRIX 11mm f/4 features Neutrino coating, which helps minimize ghosting and flare, ensuring that your images retain high contrast and color accuracy even in challenging lighting conditions.

Lightweight and Ergonomic Design

• Firefly Construction: The Firefly version of the IRIX 11mm f/4 lens is designed to be lightweight and easy to handle, making it ideal for photographers who need to carry their gear for long periods. The lens body is made from a durable yet lightweight composite material.
• Ergonomic Focus Ring: The lens features an anti-slip rubber-coated focus ring that provides a comfortable and precise grip, even in cold or wet conditions. The focus ring has a smooth rotation, allowing for fine-tuned focus adjustments.

Manual Focus Control

• Precise Manual Focusing: The lens is equipped with a manual focus system, offering smooth and accurate control over focus, which is essential for ultra-wide-angle photography. The lens also includes a focus lock mechanism, allowing you to secure your focus position during long exposures or time-lapse photography.
• Depth of Field and Hyperfocal Distance Markings: The lens barrel features laser-engraved depth of field and hyperfocal distance markings, providing critical information for achieving precise focus in landscape and architectural photography.

Specifications

• Model: IRIX 11mm f/4 Firefly
• Mount: Nikon F
• Focal Length: 11mm
• Maximum Aperture: f/4
• Minimum Aperture: f/22
• Lens Construction: 16 elements in 10 groups (including 4 high-refractive elements, 2 ED elements, and 3 aspherical elements)
• Angle of View: 126° (on full-frame)
• Minimum Focus Distance: 0.275m (10.8 inches)
• Focus Type: Manual focus
• Filter Size: None (rear gelatin filter slot available)
• Dimensions: 118mm diameter x 102mm length
• Weight: 730g (1.61 lbs)

Additional Benefits

Ideal for Wide-Angle Photography

• Perfect for Landscapes and Architecture: The ultra-wide-angle view and low distortion make this lens perfect for capturing expansive landscapes, large architectural scenes, and detailed interior spaces.
• Astrophotography Capabilities: With its wide field of view and sharp optics, the IRIX 11mm f/4 is also well-suited for astrophotography, allowing you to capture stunning images of the night sky.