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YN25mm F1.7M Micro 4/3 System Standard Prime Lens_Lens_镜头_Flash-Lens-LED Light-Flash Trigger-TTL Remote Cord-Wireless Shutter Release-Flash Equipment - YONGNUO photographic equipment Co., Ltd
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YN25mm F1.7M Micro 4/3 System  Standard Prime Lens

YN25mm F1.7M Micro 4/3 System Standard Prime Lens

  • 商品货号:ECS000355
    商品库存: 1
  • 商品品牌:Yongnuo
    商品重量:200克
  • 上架时间:2021-09-26
    商品点击数:73
  • 本店售价:$115

Available Shipping Methods at YONGNUO:
Shipping Methods:

HK/SG Registered Mail
International Express : DHL/EMS/TNT/FEDEX/UPS

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 Micro 4/3 System  Standard Prime Lens

Suitable for scene: landscape, portrait, street snap, night scene and indoor

F1.7 large aperture
Even in low-light environments, they can produce amazing moments,and the background is creamy and dreamy.

AF/MF switch
AF/MF switch is installed, allowing automatic or manual focus to switch freely.
Even in AF mode, the focusing ring can be rotated to full-time manual focus.

High precision STM stepper motor
Equipped with high speed and high precision STM stepper motor.
Cooperate with brand new control circuit,achieve fast, quiet and precise focus.

6 groups 7 lenses 
Structure of lens: 6 groups of 7 lenses, including one ultra-low dispersion lens and two aspheric lens 


 

Aspherical Lens

In order to eliminate the distortion, spherical aberration, aberration and other problems caused by spherical lenses, it is usually necessary to use multiple spherical lenses. While the use of aspheric lenses can make the surrounding incident light concentrate to the focal plane more ideal, and can save the lens, which is conducive to lightweight.


 

Monolithic spherical lens
Multiple spherical lenses
Aspherical Lens|

optical axis
Light around
Center of the light
focal plane

 

MTF Graph:

Distance from center of image

Specifications:
 

Focal Length

25mm(35mm equivalent focal length:50mm)

 

Angle Range   

Diagonal

49.4°

Vertical

30.4°

Horizontal

39.9°

Lens Construction

6 groups 7blades

Number of Aperture Blades

7 blades

Aperture Value

F1.7-F22

Minimum Focusing Distance

20cm

Maximum Magnification

0.2 times

Driving System

stepping motor

Filter Diameter

52mm

Maximum Diameter and Length

about φ60.8×66.6mm

Weight

about 150g (not including the front and rear lens caps)

Compatible list

Brand Camera
Panasonic G100
GH5
G9
G95
G85
GX9
GX85
GF-10
GF-9
Brand Camera
Olympus E-M5 II
E-M5 III
E-M10 III
E-M10 IV
PEN-F
E-PL9
E-PL10