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Samyang 50mm F1.4 AS UMC

Canon EF

Samyang 50mm F1.4 AS UMC

Focal length
50 mm
Aperture
f/1.4
Weight
535 g
Filter diameter
77 mm
Min. focus distance
45 cm
Length
74.7 mm
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At a Glance

This standard prime for Canon EF provides 50 mm on full frame and a maximum aperture of f/1.4. There is no autofocus, so focus is set by hand. At 535 g and with a 45 cm closest focus distance, it suits everyday shooting, street photography and low light, where the large opening allows short shutter times.

Good for

  • Everyday
  • Street
  • Low light

Worth knowing

  • No autofocus: focusing is manual only.

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

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Min. focal length
50 mm
Max. focal length
50 mm
Max. aperture (min. zoom)
f/1.4
Max. aperture (max. zoom)
f/1.4
Min. aperture
f/22
Elements
9
Groups
6
Weight
535 g (1.18 lb)
Filter diameter
77 mm
Min. focus distance
45 cm (17.72 in)
Length
74.7 mm (2.94 in)
Diameter
81.6 mm (3.21 in)

Manufacturer data: samyanglens.com

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Samyang 50mm F1.4 AS UMC fit?

The Samyang 50mm F1.4 AS UMC is a full-frame lens for Canon EF cameras. On full-frame bodies it uses the whole sensor; on APS-C Canon EF cameras its field of view equals 80 mm in full-frame terms.

Canon EF cameras

Full frame:
Canon EOS-1D X Mark III,Canon EOS 6D Mark II,Canon EOS-1D X Mark II,Canon EOS 5D Mark IV,Canon EOS 5Ds,Canon EOS 5Ds R,Canon EOS 5D Mark III,Canon EOS 6D,Canon EOS-1D C,Canon EOS-1D X,Canon EOS 5D Mark II
APS-C:
Canon EOS 850D (Rebel T8i),Canon EOS 90D,Canon EOS 250D (Rebel SL3),Canon EOS 4000D (3000D, Rebel T100),Canon EOS 2000D (1500D, Rebel T7),Canon EOS 800D (Rebel T7i),Canon EOS 77D,Canon EOS 200D (Rebel SL2),Canon EOS 80D,Canon EOS 1300D (Rebel T6),Canon EOS 750D (Rebel T6i),Canon EOS 760D (Rebel T6s),Canon EOS 7D Mark II,Canon EOS 1200D (Rebel T5),Canon EOS 70D,Canon EOS 700D (Rebel T5i),Canon EOS 100D (Rebel SL1),Canon EOS 650D (Rebel T4i),Canon EOS 60Da,Canon EOS 600D (Rebel T3i),Canon EOS 1100D (Rebel T3),Canon EOS 550D (Rebel T2i),Canon EOS 60D,Canon EOS 7D,Canon EOS 500D (Rebel T1i),Canon EOS 50D,Canon EOS 450D (Rebel XSi),Canon EOS 1000D (Rebel XS)

With the Canon Mount Adapter EF-EOS R the lens can also be used on Canon RF cameras.

With the Canon Mount Adapter EF-EOS M the lens can also be used on Canon EF-M cameras.

Samyang 50mm F1.4 AS UMC compared

Key specs side by side with the most similar Canon EF lenses.

LensSamyang 50mm F1.4 AS UMCSamyang / Rokinon 50mm F1.4 AS UMCZeiss Milvus 50mm F1.4Zeiss Planar T* 1,4/50
Focal length50 mm50 mm50 mm50 mm
Max. aperturef/1.4f/1.4f/1.4f/1.4
Weight535 g535 g922 g380 g
Filter diameter77 mm77 mm67 mm58 mm
Min. focus distance45 cm45 cm45 cm45 cm
Length74.7 mm75 mm97.5 mm48 mm
Autofocusnononono
Image stabilizationnononono
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Samyang 50mm F1.4 AS UMC: FAQ

Does the Samyang 50mm F1.4 AS UMC have autofocus?

No, the Samyang 50mm F1.4 AS UMC has no autofocus; you focus it manually.

Does the Samyang 50mm F1.4 AS UMC have image stabilization?

No, the Samyang 50mm F1.4 AS UMC has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the Samyang 50mm F1.4 AS UMC weigh?

The Samyang 50mm F1.4 AS UMC weighs 535 g. It is 74.7 mm long with a diameter of 81.6 mm.

What filter size does the Samyang 50mm F1.4 AS UMC use?

The Samyang 50mm F1.4 AS UMC takes 77 mm screw-in filters.

How close can the Samyang 50mm F1.4 AS UMC focus?

The minimum focus distance of the Samyang 50mm F1.4 AS UMC is 45 cm, measured from the sensor plane.

Is the Samyang 50mm F1.4 AS UMC a full-frame lens?

Yes, the Samyang 50mm F1.4 AS UMC covers full frame. On APS-C cameras its field of view equals 80 mm in full-frame terms.

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