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YONGNUO Ultra-wide Angle Prime Lens YN14mm F2.8

 A Professional Lens of Capturing Grand View

YONGNUO Ultra-wide Angle Prime Lens YN14mm F2.8

¨ 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, its easier to show a grand and solemn atmosphere.

High-precision,Ultra-low Dispersion and Aspherical Lens

It carries two high-precision aspherical glass lenses, one of which adopts ultra-low dispersion lens, which effectively compensates various optical aberration,  minimizes chromatic aberrations, and provides 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 from super-wide angle and large aperture, and, helps to improve second order spectrum.

¨ Glass Optical Lens, Multilayer Coating

It adopts glass optical lens and multilayer coating technology to effectively increase light transmittance and minimize backlight ghost image and glare. 

¨ Firmware Upgrade

YN14mm F2.8 is equipped with USB port. The users can download the latest firmware from the official YONGNUO website and update the lens to keep the 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.

7 pieces of Aperture Blades

YN14mm F2.8 has 7 pieces of aperture blades, which helps to take picture of circular defocused spots and 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. Its wearable, corrosion-resistant, and highly consistent with the camera.  

¨ Focus Distance Indicator

YN14mm F2.8 is equipped with focus distance indicator. Its convenient for you to judge the distance and the depth of field.

¨ Gold-plating Technology

The metal contacts adopts gold-plating technology,which brings the advantages of excellent signal transduction ,perfect image quality and new performance breakthroughs.


 Focal Length


 Lens Structure

9 groups 12pcs

 Diaphragm Leaves


 Minimum Aperture


Minimum Focus Distance

Approx 0.2m

Maximum Amplification Factor

Approx 0.15x

Drive System

DC Motor

Maximum Diameter and Length

Approx Φ86×105mm


Approx 780g

nLens length is the distance between the mounting surface and the front end of the lens.

nExcept for special instructions, the measure and weight are only suitable for lens.

nThe aperture settings can be controlled by camera.

MTF曲线 MTF Curve Graph

Spatial Frequency

10 lines/mm


Ultra-low dispersion aspherical lens
Aspherical lens
Anomalous dispersive lensUltra-high refractive index lens

※The above data are acquired based on the test conditions of YONGNUO company. Further notice will not be given if the design and specification change.

Driver & Software:
for Windows 
for Mac


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