Summary:
An impressively wide prime lens, the 15mm f/2.4 Firefly Lensfrom 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.
Performance
Focal Length 15mm
Aperture Maximum: f/2.4
Minimum: f/22
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 110°
Minimum Focus Distance 11.02" / 28 cm
Optical Design 15 Elements in 11 Groups
Diaphragm Blades 9, Rounded
Features
Autofocus No
Physical
Filter Thread Front: 95 mm
Rear:
Dimensions (DxL) 4.49 x 3.94" / 114 x 100 mm
Weight 1.28 lb / 581 g
Packaging Info
Package Weight 2.75 lb
Box Dimensions (LxWxH) 7.8 x 6.0 x 6.0"
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