Yongnuo YN 14mm f/2.8 ultra-wide lens now officially announced


The Yongnuo YN 14mm f/2.8 ultra-wide lens is now officially announced. Here are the technical details:

  • 114° Ultra-wide Angle: The diagonal angle of view is about 114°. For YN14mm F2.8 helps to collect the vast landscape and giant structures, it’s easier to show a grand and solemn atmosphere.
  • Precision-machined Ultra-low Dispersion Lens and Aspherical Lens: YN14mm F2.8 carries 2pcs of aspherical lens. One of the aspherical lens adopts ultra-low dispersion lens, which effectively compensates various optical aberration, reduce the color difference to the maximum, and provide excellent sharpness and color correction.
  • Precision-machined Abnormal Dispersion Lens: YN14mm 2.8 adopts 1pcs of abnormal dispersion lens, which helps to better control the dispersion problem with super-wide angle and large aperture, and, helps to improve second order spectrum.
  • Glass Optical Lens, Multilayer Coating: The whole series of this product adopts glass optical lens and multilayer coating technology to effectively increase light transmittance and control backlight ghost image and glare.
  • Firmware Upgrade: YN14mm F2.8 is equipped with USD port. The users can download the latest firmware from the official YONGNUO website and update the lens to keep best compatibility and performance.
  • F2.8 Large Aperture: With F2.8 bright and large aperture, background blurred, subject highlighted.
  • Focus Modes: Auto Focus (AF) and Manual Focus (MF): YN14mm F2.8 supports auto focus and manual focus. The focus mode can be selected according to practical requirement.
  • 7cps of Diaphragm Leaves: YN14mm F2.8 has 7pcs of diaphragm leaves, which helps to take picture of circular defocused spots or helps to reduce the aperture and take picture of 14-star effect.
  • Durable Metal Mount: YN14mm F2.8 adopts chrome-plated and high-accuracy metal mount. It’s wearable, corrosion-resistant, and highly consistent with the camera.
  • Focus Distance Indicator: YN14mm F2.8 is equipped with focus distance indicator. It’s convenient for you to judge the distance and the depth of field.
  • Gold-plating Technology: The metal contacts adopts gold-plating technology to effectively improve signal conductivity and corrosion resistance.

Technical specifications:

  • Focal Length 14mm
  • Lens Structure 9 groups 12pcs
  • Diaphragm Leaves 7pcs
  • Minimum Aperture 22
  • Minimum Focus Distance Approx 0.2m
  • Maximum Amplification Factor Approx 0.15x
  • Drive System DC Motor
  • Maximum Diameter and Length Approx Φ86×105mm
  • Weight Approx 780g
  • The aperture settings can be controlled by camera

Yongnuo YN 14mm f/2.8 lens MTF charts:


Yongnuo YN 14mm f/2.8 lens design:


For comparison, here are two pictures of the "original" Canon EF 14mm f/2.8L II USM lens:

Yongnuo lenses are sold at B&H and Amazon.

Via Yongnuo

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