IRIX 45mm f/1.4 Lens for Nikon F

F-Mount Lens/FX Format

Aperture Range: f/1.4 to f/22

One Aspherical Element, Four HR Elements

One Extra-Low Dispersion Element

Combining a versatile normal focal length with fast design, the Nikon F-mount Irix 45mm f/1.4 is a useful prime lens characterized by its manual focus operation and weather-sealed design. The bright f/1.4 maximum aperture excels in low-light conditions and also offers increased control over depth of field for working with selective focus techniques. The optical design incorporates a series of specialized elements to reduce a variety of aberrations in order to produce sharp and color-accurate imagery.

Complementing the optical assets is a robust physical construction, dubbed Dragonfly, which incorporates extensive weather sealing to guard against dust and moisture. This manual focus lens also features printed focus distance and depth of field scales to benefit fast and accurate focusing, and a rounded nine-blade diaphragm contributes to a smooth bokeh quality.

Normal-length prime is compatible with FX-format Nikon F-mount cameras, however can also be used with DX models where it provides a 67.5mm equivalent focal length. Impressive f/1.4 maximum aperture suits working in a variety of lighting conditions and also affords great control over depth of field for isolating subject matter using selective focus techniques. One aspherical element and four high refractive index (HR) elements help to minimize spherical aberrations and distortion in order to achieve high sharpness and accurate rendering. One extra-low dispersion element suppresses color fringing and chromatic aberrations for a high degree of color fidelity and clarity throughout the aperture range. Manual focus design is benefitted by a positive focus lock mechanism to secure your focus position at any point to limit unwanted shifting of focus. Also, an internal focusing design maintains the overall length of the lens during operation. Depth of field scale benefits using hyperfocal and pre-focus techniques and lens engravings are filled with UV-reactive paint to make them readable in low-light conditions. Dragonfly finish incorporates weather sealing to guard against dust and moisture. Rounded nine-blade diaphragm contributes to a pleasing bokeh quality. Integrated CPU enables camera-based aperture control along with focus confirmation.

Focal Length	45mm
Maximum Aperture	f/1.4
Minimum Aperture	f/22
Lens Mount	Nikon F
Format Compatibility	Full-Frame
Angle of View	51.4°
Minimum Focus Distance	1.31' / 40 cm
Optical Design	11 Elements in 9 Groups
Diaphragm Blades	9, Rounded
Focus Type	Manual Focus
Image Stabilization	No
Filter Size	77 mm (Front)
Dimensions (ø x L)	3.43 x 4.06" / 87 x 103 mm
Weight	1.99 lb / 905 g

Package Weight	3.335 lb
Box Dimensions (LxWxH)	7.5 x 6.5 x 5"

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