Irix 15mm f/2.4 Firefly – Nikon
The Irix 15mm f/2.4 Firefly – Nikon an impressively wide prime lens meshes advanced optical design with a lightweight, durable physical construction. Its expansive field of view is complemented by a sophisticated optical layout that utilizes low dispersion, aspherical, and high-refractive glass elements, as well as a Neutrino coating, to render imagery with low distortion, controlled spherical and chromatic aberrations, high contrast, and natural colour rendering.
In addition to the imaging performance, this 15mm f/2.4 utilizes a manual focus design for fine-tuned control, and incorporates a unique positive focus lock to secure the focusing position at any point for consistent, repeatable shooting. As the Firefly version of this focal length, this lens is also distinguished by a lightweight ABS plastic exterior, printed lens markings, and weather-sealing to permit working in trying environmental conditions.
Key Features of the Irix 15mm f/2.4 Firefly – Nikon
- The Firefly version of the 15mm f/2.4 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.
- Two aspherical, three 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 colour 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 colour 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.
- Front of lens has 95mm-diameter filter threads and the rear of the lens accepts 30 x 30mm cut gel filters to lessen the likelihood of vignetting.
- Rounded nine-blade diaphragm contributes to smooth bokeh.
Firefly | The lightweight option
Firefly – Lightweight composite construction, with an embossed rubber focus ring, allowing for smooth and precise focusing. Included with the lens is a soft pouch.
Intelligent Lens Design
The Irix 15mm f/2.4 lens allows you to control the lens’ iris directly from the camera, popular semi-automatic modes (PASM) and data recording in EXIF format all work as expected.
Supporting focus confirmation systems the lens will communicate it’s focus position and the camera will announce the correct focus setting (if supported)
Appropriate correction profiles have been pre-loaded into the lens and are readable by software (such as Adobe Lightroom and Adobe Photoshop), making your shooting and post-workflow experience even more enjoyable.
Creative Tool
Open up a completely new type of photography with an eye-catching 110-degree field of view, and excellent optical properties for sharp images full of detail.
Optics that guarantee sharp images
Thanks to many years of experience in optical design, Irix lenses are characterized by their excellent resolution and minimal distortion (2%) and vignetting. The Irix 15mm f/2.4 lens consists of as many as 16 elements arranged in 10 groups:
- 4 refractive elements,
- 2 ED elements
- and 3 aspherical elements.
A focusing distance of only 28cm, in combination with the 9 rounded aperture blades opening up to f/2.4, making the lens stand out with an amazing perspective and extremely smooth bokeh.
Compatible with filters
The unique Irix 15mm f/2.4 lens can use both classic 95mm screw-on filters, as well as square filters, thanks to the optional Irix Edge IFH-100 holder!
Every serious landscape photographer uses filters – they allow an expanded creative approach to photography. Use 95mm filters, such as UV & Protector filters to protect your lens against damage, or Circular Polarizers to cut off unwanted reflections and increase clarity.
Using the optional Irix Edge IFH-100 Filter Holder you can expand your camera’s capabilities by use of Gradual Neutral Density filters with different gradients: Soft, Hard and Reverse. By cutting off part of the light from the brightest part of the image, you can shoot even in the most difficult lighting conditions.
Perfect for night photography
The Irix 15mm f/2.4 is an irreplaceable tool for any astrophotographer – its fast aperture of f/2.4, combined with a short focal length allows you to capture spectacular shots of the night sky and the Milky Way.
Ready for Any Conditions
It doesn’t matter if you’re traversing the hot sands of the Sahara or the frigid expanse of Antarctica – Irix lenses never back down from any challenge.
The sealing system has been designed to protect the inside of the lens from moisture, dust, and sand. Equally important, the lens does not change its dimensions during focus pulling, eliminating the risk of dirt particles getting swept into the internal structure.
Other Features
- Click at infinity | For precise, easy, and quick focusing. You will feel the exact moment when your lens ‘clicks’ to infinity, extremely useful when shooting in dark lighting conditions.
- Focus Lock | Allowing you to lock the focus ring in a specific position, beneficial when you want to keep a specific focus plane i.e. in astrophotography, or when using the hyperfocal scale.
- 95mm front filter thread | Use easy to find screw-in filters such as UV & Protectors, Circular Polarizers, NDs, and Light Pollution filters.
- Compatible with Irix Edge IFH-100 Filter Holder | Expand your creativity with Gradual Neutral Density filters with different gradients.
- Rear Gel filter slot | Allows the use of Neutral Grey filters mounted on the rear of the lens.
- Circular Polariser Adjustment Window | The lens hood is equipped with a sliding window, allowing you to freely rotate a polarizing filter while still attached.
- Focus Calibration window | With phase-detection AF, it may sometimes happen that the lens needs to sync with the camera – due to the specifics of focus detection in DSLR cameras. This special opening means you can easily calibrate the lens at home using basic tools.
- MPN – IL-15FF-NF
- GTIN – 7640172190029
