Photo: Jakub T. Jankiewicz (CC BY-SA 4.0)
Quick answer
The Irix 11mm f/4 G is a ultra-wide prime lens covering 11mm at f/4.0 for the Nikon F mount. Its moderate maximum aperture works best in good light or with a higher ISO.
About this lens
A 11mm f/4 wide-angle prime lens, the Irix 11mm f/4 G is designed for Nikon F mount bodies. The wide view suits landscapes, architecture and environmental shots.
Irix 11mm f/4 G specifications
What can you shoot with the Irix 11mm f/4 G?
At 11mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its moderate maximum aperture works best in good light or with a higher ISO.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 11mm | 117.1° | 126.1° |
| APS-C | 1.5x | 17mm | 95° | 105.3° |
Frequently asked questions
What mount does the Irix 11mm f/4 G use?
It uses the Nikon F mount, so it fits Nikon F cameras directly.
What is the focal length of the Irix 11mm f/4 G?
It is a fixed 11mm lens with a maximum aperture of f/4.0. That makes it a ultra-wide lens.
Is the Irix 11mm f/4 G a prime or a zoom lens?
It is a prime lens with a fixed 11mm focal length. Primes usually open wider than zooms; this one opens to f/4.0.
What is the Irix 11mm f/4 G equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 17mm on full frame, with a 95° horizontal and 105.3° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Irix 11mm f/4 G fit?
Any Nikon F-mount camera, including Nikon D3, Nikon D300, Nikon D3000, Nikon D300S, and Nikon D3100 and 35 more.
Alternatives for Nikon F from other brands
All Nikon F lensesSame mount, overlapping focal range, closest maximum aperture first.
