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Yongnuo YN 50mm f/1.8S DA DSM APS-C lens for Sony E-mount
Yongnuo YN 50mm f/1.8S DA DSM APS-C lens for Sony E-mount
MirrorlessReports Admin
/ Categories: E & FE Mounts (Sony), News

Yongnuo YN 50mm f/1.8S DA DSM APS-C lens for Sony E-mount

Seems like Yongnuo has released a new lens, this time for the Sony E-mount.  The YN 50mm f/1.8S DA DSM is for APS-C users on the E-mount. Unknown if they will expand their coverage for the X or EF-M mount, but it would make sense for Yongnuo to do so.

Technical specifications

Equivalent to 35mm focal section about 75mm
Bayonet E mount
Frame APS-C
Angle of View about 30.4 degree
Lens Construction 7 groups 8 blades
Aperture Blades 7 blades
Minimum Aperture F/16
Closest focus distance about 0.45 meters
Maximum Magnification about 0.14×
Filter diameter/available number 49mm/1
Maximum diameter and length about Φ64×58mm
Weight about146g

Lens design and MTF chart

Additional information

YN50mm F1.8S DA DSM is an automatic focus lens designed for the E mount APS-C frame digital camera of S, which has excellent performance in blurs background to highlight the main body, imaging sharpness, volume and weight.

Carry the digital stepping motor

Compared with the traditional DC motor, digital stepping motor (DSM) has fast start and stop response, high focusing accuracy and quieter focusing action, which is suitable for photo shooting and short film recording.

Electronic focus rings

Adopts electronic focus rings, supplemented by appropriate damping, which can provide smooth manual focus experience of high precision.

USB Firmware Upgrade

Equipped with USB interface, you can download the latest firmware from Yongnuo official website to upgrade the lens.

F1.8 Bright and large Aperture

Flexible use of F1.8 large aperture, easy to obtain a soft and beautiful blur effect. In low light environment you can also use a low sensitivity and high shutter for shooting.

Low dispersion glass lens

Adopts one low dispersion glass lens,which not only better suppress the dispersion problem, but also further improve the secondary spectrum.

Internal focus design, small and lightweight

Focusing lens set adopts internal focusing design,the weight is only about 146 grams, small and light, easy to carry.

7 groups of 8 pieces of optical structure design, nanometer multi-layer coating

Adopts 7 groups of 8 pieces of optical structure design, nanometer multi-layer coating process of lens can effectively improve the light transmittance and inhibit the ghost image and glare of backlight.

Gold-plated contact, metal bayonet

Adopts gold-plated contact and high-precision metal bayonet, it can effectively improve the signal conductivity and corrosion resistance.

Fast autofocus (AF) and manual focus (MF) are supported

Auto focus and manual focus are supported,you can choose the focus mode according to your shooting requirements.

Seven circular aperture blades

With 7 circular aperture blades, circular dispersion spots can be shot, and 14 star awn

Effects can be achieved by properly reducing the aperture.

Lens length is the distance from the mounting surface to the front of the lens.

In addition to the special specification, size and weight is only applicable to the lens.

The aperture can be set by the camera.


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