Irix Lens 11mm f/4 Firefly for Nikon

£520.00

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Description

The extremely wide-angle, rectilinear manual focus lens designed for DSLR cameras.

Our 11mm lens is an extremely wide Full Frame rectilinear lens with a 126° angle of view. 4 high refractive lenses, 2 ED lenses and 3 aspherical lenses guarantee minimal distortion, as low as 3.13%, making our 11mm f/4.0 lens absolutely unique in its class. We know how important it is to protect your gear. All Irix lenses are made with phenomenal precision. Each Irix lens is equipped with a weather sealed construction which protects the interior against dust and moisture. Thanks to inner seals, our lenses are also protected from accidental water splashes. No matter the journey, you can be confident that our weather sealed lenses will offer you maximum resistance to the extremes.

Firefly is the standard version equipped with three rubber seals that protect camera mount and focusing mechanism against dust, moisture and side accidental water splashes. Ergonomic focusing ring with rubber grip offers the freedom to operate with the camera. It is the most lightweight lens in its class.

Key Features

  • The Firefly version of the 11mm f/4 lens features a lightweight ABS plastic exterior construction that is sealed against moisture and dust along the main body of the lens. The Firefly construction also incorporates a rubber focus ring for improved grip and control, and has printed focus distance and depth of field scales to aid working with pre-focusing and hyperfocal focusing techniques.
  • Ultra wide-angle prime designed for FX-format Nikon F-mount DSLRs, this lens can also be used on DX models where it provides a 16.5mm equivalent focal length.
  • Three aspherical, four high-refractive index, and two extra-low dispersion elements are featured within the optical design to limit both spherical and chromatic aberrations, as well as color fringing and distortion, for improved clarity, sharpness, and even illumination.
  • A Neutrino coating has been applied to limit lens flare and ghosting for improved contrast and color fidelity.
  • Manual focus designed is benefitted by a positive focus lock mechanism to secure your focus position at any point to limit unwanted shifting of focus.
  • A hard click stop indicates the infinity position on the focus ring for easy use in low-visibility conditions.
  • Large depth of field scale benefits using hyperfocal and pre-focus techniques.
  • Built-in petal-shaped lens hood blocks stray light in order to reduce lens flare, and also protects the front element of the lens.
  • Rear of the lens accepts 30 x 30mm cut gel filters.
  • Rounded nine-blade diaphragm contributes to smooth bokeh.

Specifications

IMAGE SIZE 35mm “Full Frame”
FOCAL LENGHT 11 mm
FIELD OF VIEW 126° (diagonal)
FOCUSING RANGE 0.275 m (0.9 ft) – ∞
FOCUSING TYPE manual with lock function
APERTURE RANGE f/4 – f/22
APERTURE CONTROL via camera
APERTURE SHAPE 9 rounded blades
LENS CONSTRUCTION 16 elements in 10 groups 4x HR, 2x ED, 3x ASP
FRONT FILTER THREAD no
REAR FILTER THREAD 30 x 30 mm
BAYONET MOUNT Nikon F
DIMENSION 118 x 100 mm (4.49” x 4.05”)
WEIGHT 730 g (1.61 lbs) – 790 g (1.74 lbs)