Samyang AF 50mm f/1.4 - Sony FE Full Frame UMC II Mark 2

Samyang AF 50mm f/1.4 - Sony FE Full Frame UMC II Mark 2

Samyang AF 50mm f/1.4 - Sony FE Full Frame UMC II Mark 2

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The Samyang AF 50mm f1.4 - Sony FE Full Frame UMC II Mark 2 is a fast and compact normal prime lens for Sony E-mount cameras. It present several features that punch well above its class while still maintaining a small and lightweight profile.

The bright f/1.4 maximum aperture pairs with a nine-blade diaphragm to benefit selective focus and shallow depth of field imaging with smooth bokeh, making it an ideal lens for portraiture. An Ultra Multi Coating has been applied to lens elements to reduce flare and ghosting for higher contrast and colour fidelity. The optical design incorporates three High Refractive, one Extra Low Dispersion, and two Aspherical elements.

To compliment the imaging capabilities, the lens sports a customizable focus ring that can be changed to perform other functions through convenient switch located on the barrel. A Linear STM autofocus motor is used to produce quick, smooth, and quiet performance with full-time manual focus override, and a non-rotating filter, along with features like Internal AF and reduced focus breathing make it an optimal lens for video.


Key Features of the Samyang AF 50mm f1.4 - Sony FE Full Frame UMC II Mark 2

  • Bright f/1.4 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques
  • A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and colour-neutral imagery, even in backlit conditions.
  • The integrated autofocus motor works in conjunction with Sony cameras' focusing systems for quick, accurate, and precise AF control. Manual focus override is also available for refining your focus position
  • Nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.

Excellent Resolution in All Areas of the Image

Optimum resolution is achieved through the 6 special glasses(2 U-ASP, 3 HR, and 1 ED) among the optical design of 11 elements in 8 groups. Combined with Sony's full-frame image sensor, this lens delivers superior sharpness and contrast in all areas of the image.

Impressive Background Blur and Bokeh with Bright F1.4 Aperture

The AF 50mm F1.4 FE II uses a large-diameter aperture to provide smooth background blur. It effectively separates the subject from the background, using a shallow depth of field and adding drama to the scene. Also, it is equipped with UA(Ultra-precision Aspherical) lenses, so you can enjoy the natural and refined bokeh. Using this smooth bokeh, you can freely create photos highlighting your subject!

Advanced Fast and Quiet AF for Stills and Movies

Tracking the subject accurately and quickly, the AF also operates quietly and smoothly when shooting video. Samyang's Linear STM (Stepping Motor) satisfies both photographers and videographers with quieter and more accurate control of the focusing lens groups.

Less Focus Breathing for Shooting Video

The optical design minimizes focus breathing, which is especially advantageous for video recording. There is almost no change in the angle of view when adjusting the focus from close focus to infinity, so you can experience professional cinematic effects during shooting video with the subject moving forward or backward, or focusing from the front or back.

Focus Hold Button

Pressing this button on the lens will keep the lens locked to that focusing distance. You can assign functions such as Eye AF in settings on the camera body.

Custom Switch

There is a custom switch, which can be set to allow adjustment of the aperture silently by rotating the focus ring. Using the optional Lens Station, you can set up the mode to suit your own preference.

Short Minimum Focusing Distance

The minimum focusing distance is just 0.40m (1.31ft), so it is versatile and possible to produce a unique perspective close to the subject. This makes it easier to take close-up and dramatic shots of food, portraits, and nature.

Weather-Sealing Design and New Design

The usability of the AF 50mm F1.4 FE II lens has been developed and enhanced, taking into consideration not only the design but also the user's shooting environment. It has a micro-patterned rubber focus ring, so feels great to operate and weather-sealing also protects the lens from light rain, snow, and dust. The matte finish and the subtle red ring (dependent on viewing angle) give it a modern feel.


  • MPN - 200691
  • GTIN - 8809298887698
Focal Length50mm
Maximum Aperturef/1.4
Minimum Aperturef/16
Lens MountSony E
Format CompatibilityFull-Frame
Angle of View45.7°
Minimum Focus Distance15.7" / 40 cm
Close-Up Magnification0.16x
Optical Design11 Elements in 8 Groups
Diaphragm Blades9
Focus TypeAutofocus
Image StabilizationNo
Filter Size72 mm (Front)
Dimensions (ø x L)3.2 x 3.5" / 80.1 x 88.9 mm
Weight14.8 oz / 420 g