IRIX 15mm f2.4 Firefly

Objective IRIX 15mm Firefly

An impressively wide main lens, the 15mm f/2.4 Firefly lens with Irix CANON EF mount combines advanced optical design with a lightweight and durable physical build. The expansive field of view is complemented by a sophisticated optical design that uses high-refraction, aspherical, and low-dispersion glass elements, as well as a Neutrino coating, to render images with low distortion, controlled spherical and chromatic aberrations, high contrast, and natural color reproduction.

In addition to image performance, this 15mm f/2.4 uses a manual focus design for precise control and incorporates a unique positive focus lock to ensure focus position at any point for consistent and repeatable shots. Like the Firefly version of this focal length, this lens is also distinguished by a lightweight ABS plastic exterior, printed lens markings and weatherproof around the lens housing to allow working in harsh environmental conditions.

The Firefly version of the 15mm f/2.4 lens features a lightweight ABS plastic outer construction that is sealed against moisture and dust along the main lens body. The Firefly build also incorporates a rubber focus ring to improve grip and control, and has printed focus distance and depth of field scales to help work with hyperfocal and prefocus focusing techniques.

• Designed for full-frame DSLRs with CANON EF mount, this lens can also be used on APS-C models where it provides a focal length equivalent to 24mm.
• The optical design features two aspherical elements, three high refractive index and two extra low dispersion to limit spherical and chromatic aberrations, as well as fringes and color distortion, to improve clarity, sharpness and even illumination.
• A Neutrino coating has been applied to limit lens flare and ghosting to improve contrast and color fidelity.
• The designed manual focus benefits from a positive focus lock mechanism to secure your focus position at any point to limit unwanted focus shifting.
• A strong click stop indicates the infinite position on the focus ring for easy use in low visibility conditions.
• Great depth of field scale benefits using hyperfocal and prefocus techniques.
• The front of the lens has 95mm diameter filter threads and the back of the lens accepts 30 x 30mm cut gel filters to decrease the likelihood of vignettes.
• The rounded nine-blade diaphragm contributes to a smooth bokeh effect.
• Includes complimentary additional rear lens cap.