IRIX 15mm f/2.4 Firefly Lens for Pentax K

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IRIX 15mm f/2.4 Firefly Lens for Pentax K

IRIX 15mm f/2.4 Firefly Lens for Pentax K

Price:

$213.95 (US Dollar)

SKU:

194515086

Condition:

New

Availability:

In Stock

Shipping:

Calculated at checkout

Product Description

Key Features

Pentax K-Mount/Full-Frame Format
Aperture Range: f/2.4 to f/22
Two Aspherical Elements
Two ED and Three HR Elements
Neutrino Coating
Manual Focus Design with Focus Lock
Rubberized Focus Ring
Depth of Field and Focus Distance Scales
Weather-Sealed ABS Plastic Housing
Rounded Nine-Blade Diaphragm

An impressively wide prime lens, the Pentax K-mount 15mm f/2.4 Firefly Lens from Irix meshes an advanced optical design with a lightweight, durable physical construction. The 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 color 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 about the lens housing to permit working in trying environmental conditions.

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.

Wide-angle prime designed for full-frame Pentax K-mount DSLRs, this lens can also be used on APS-C models where it provides a 22.5mm equivalent focal length.

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 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.

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.

Includes complimentary additional rear lens cap.

Product Specification

IRIX 15mm F/2.4 Firefly Specs

Focal Length	15mm
Maximum Aperture	f/2.4
Minimum Aperture	f/22
Lens Mount	Pentax K
Format Compatibility	Full-Frame
Angle of View	110°
Minimum Focus Distance	11.02" / 28 cm
Optical Design	15 Elements in 11 Groups
Diaphragm Blades	9, Rounded
Focus Type	Manual Focus
Image Stabilization	None
Filter Size	95 mm (Front) Gel Filter (Rear)
Dimensions (ø x L)	4.49 x 3.94" / 114 x 100 mm
Weight	1.28 lb / 581 g