Finishing Aspheric Lens
YN40mm F2.8N carries finishing aspheric lens, which effectively compensate various aberration. 
F2.8 Large Aperture
F2.8 bright and large aperture helps to blur out the background and highlight the subject.
 
Two Focus Modes Supported: Auto Focus (AF) and Manual Focus (MF)
YN40mm F2.8N supports auto focus and manual focus. You can choose focus mode according to the practical shooting needs.
 
6pcs of Aperture Blades
With 6pcs of Aperture blades, YN40mm F2.8N helps making rounded defocused spots, or stops down to make effect of 12 stars.
 
Durable Metal Mount
YN40mm F2.8N adopts chrome plated and high-precision metal mount, which is consistent with the camera. The mount is wearable, corrosion-resistantand durable. 
 
Equipped with Focus Distance Indicator
YN40mm F2.8N is equipped with focus distance indicator. It’s convenient for you to judge distances and the depth of field.
 
Various Shooting Modes Supported
YN40mm F2.8N supports various shooting modes. The aperture and other information can be found from EXIF.
 
Glass Optical Lens, Multilayer Coating
All series of products adopt glass optical lens and multilayer coating, which effectively helps to increase the light transmittance and inhibit backlight and glare.
 
Gold-plating Technology
YN40mm F2.8N adopts gold-plating metal contacts to effectively increase signal conductivity and corrosion resistance.
 
Specifications
Focal Length
40mm
Structure
4 groups 6pcs
Aperture Blades
6pcs
Minimum Aperture
F/22
Minimum Focal Distance
About 0.3m
Maximum Amplification Factor
About 0.18x
Driving System
DC Motor
Filter Diameter
58mm
Maximum Diameter and Length
Aboutφ74×45mm
Weight
About 130g

Package included

- 1 x Yongnuo YN40mm F2.8 for Nikon

- 1 x User manual