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NiSi 15mm f/4 Sunstar ASPH Lens for Canon RF (Black)

BH #NI15SSSWACRF • MFR #NISI-LENS-1540RF
NiSi 15mm f/4 Sunstar ASPH Lens for Canon RF (Black)
Key Features
  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • One Aspherical Element, Two ED Elements
  • Anti-Reflective & Hard Surface Coatings
Characterized by its ultrawide field of view, the black Canon RF-mount NiSi 15mm f/4 Sunstar ASPH Lens is also distinguished by its distinct rendering of point light sources. Well-suited for landscapes, cityscapes, architectural, and interior applications, this ultrawide-angle prime strays from the norm with a 10 straight-bladed aperture design that promotes making clear 10-point sun stars from specular highlights throughout the aperture range. Optically, this lens sports a double-sided aspherical element and a pair of low dispersion glass elements, which help control a variety of aberrations and distortion for high sharpness, clarity, and accurate rendering. Both anti-reflective and protective coatings are featured, and the lens has a manual focus design with a 7.9" minimum focusing distance for working with close-up subjects.
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NiSi 15mm f/4 ASPH Overview

By B&H Photo's

Characterized by its ultrawide field of view, the black Canon RF-mount NiSi 15mm f/4 Sunstar ASPH Lens is also distinguished by its distinct rendering of point light sources. Well-suited for landscapes, cityscapes, architectural, and interior applications, this ultrawide-angle prime strays from the norm with a 10 straight-bladed aperture design that promotes making clear 10-point sun stars from specular highlights throughout the aperture range. Optically, this lens sports a double-sided aspherical element and a pair of low dispersion glass elements, which help control a variety of aberrations and distortion for high sharpness, clarity, and accurate rendering. Both anti-reflective and protective coatings are featured, and the lens has a manual focus design with a 7.9" minimum focusing distance for working with close-up subjects.

Ultrawide prime is designed for full-frame Canon RF-mount mirrorless cameras.
One double-sided aspherical element reduces distortion and spherical aberrations in order to achieve high sharpness and accurate rendering.
Two extra-low dispersion elements control color fringing and chromatic aberrations for accurate colors and high clarity.
Anti-reflective coating minimizes lens flare and ghosting for improved contrast when working in strong lighting conditions.
Hard surface coating protects the front element from markings and also adds a water-resistant finish.
Manual focus design permits working with subjects as close as 7.9" away.
Distinct 10 straight-blade aperture design promotes making 10-point sun stars from specular highlights throughout the aperture range.

NiSi 15mm f/4 ASPH Specs

Focal Length15mm
Maximum Aperturef/4
Minimum Aperturef/22
Lens MountCanon RF
Lens Format CoverageFull-Frame
Angle of View112°
Minimum Focus Distance7.9" / 20 cm
Maximum Magnification0.13x
Optical Design12 Elements in 10 Groups
Diaphragm Blades10
Focus TypeManual Focus
Image StabilizationNo
Filter Size72 mm (Front)
Dimensions (ø x L)3 x 3.2" / 75.6 x 80.5 mm
Weight1 lb / 470 g

NiSi 15mm f/4 ASPH Reviews

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