Lens Summary
Brand: Irix
Also Known As: Irix 11mm f/4
Lens Type: Prime Lens
Format: Full Frame / FX
Focus: Manual Focus
Lens Mount: Canon EF, Nikon F, Pentax K
Release Date: 2017-03-02
MSRP Price: $574.95
Made in: South Korea
Production Status: In Production
Lens Description: A versatile ultra-wide prime lens, the Nikon F-mount 11mm f/4 Firefly Lens from Irix balances a sophisticated optical design with a lightweight, durable physical construction. Aspherical, extra-low dispersion, and high-refractive index elements are used to suppress color fringing, chromatic and spherical aberrations, as well as unwanted distortion, and also contribute to producing a high degree of sharpness and clarity. Additionally, a Neutrino coating has been applied to limit lens flare and ghosting for improved contrast and color accuracy when working in strong lighting conditions.
Photography Life Review Summary: This is a lens for rather special purposes, I do not recommend starting with this lens to anybody who has not photographed with any wide angle yet. Creative and advanced photographer looking for new tools and perspectives may feel attracted to this lens. Read the full IRIX 11mm f/4 Firefly Review by Photography Life.
IRIX 11mm f/4 Firefly Specifications
| Lens Specifications | |
|---|---|
| Lens Type | Prime Lens |
| Focal Length | 11mm |
| Mount Type | Canon EF, Nikon F, Pentax K |
| Format | Full Frame / FX |
| Compatible Format(s) | Full Frame / APS-C |
| Compatible with Teleconverters | No |
| Image Stabilization | No |
| Aperture Information | |
| Aperture Ring | No |
| Maximim Aperture | f/4 |
| Minimum Aperture | f/22 |
| Maximum Angle of View (Full Frame format) | 126° |
| Optical Information | |
| Lens Elements | 16 |
| Lens Groups | 10 |
| Diaphragm Blades | 9 (Rounded) |
| Extra-Low Dispersion Glass Elements | 2 |
| Special Glass Elements | Four HR Elements |
| Aspherical Elements | 3 |
| Nano Coating | Yes |
| Anti-Reflective Coating | No |
| Focus Information | |
| Focus | Manual Focus |
| Built-in Focus Motor | No |
| Silent Wave / UltraSonic Motor | No |
| Minimum Focus Distance | 10.83" (27.5 cm) |
| Filter Information | |
| Filter Size | N/A |
| Accepts Filter Type | N/A |
| Physical Characteristics | |
| Weather / Dust Sealing | Yes |
| Mount Material | Metal |
| Tripod Collar | No |
| Dimensions | 4.65 x 4.06" (118 x 103 mm) |
| Weight | 1.61 lb (730 g) |
| Other Information | |
| Available in Colors | Black |
Lens Construction
MTF Chart
Distortion
Sample Images
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