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Samyang / Rokinon 50mm F1.2 ED AS UMC CS

Sony E

Samyang / Rokinon 50mm F1.2 ED AS UMC CS

Focal length
50 mm
Aperture
f/1.2
Weight
385 g
Filter diameter
62 mm
Min. focus distance
50 cm
Length
74.2 mm
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At a Glance

On Sony E-mount APS-C cameras, this lens acts as a short telephoto with a full-frame equivalent of 75 mm. The f/1.2 aperture is very wide, giving a shallow depth of field and short shutter times in low light. Focusing is manual and internal, down to 50 cm. The hood is removable and reversible. It mainly suits portraits.

Good for

  • Portraits

Worth knowing

  • APS-C image circle: on full-frame cameras only usable in crop mode, at reduced resolution.
  • 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/1.2
Max. aperture (max. zoom)
f/1.2
Min. aperture
f/16
Elements
9
Groups
7
Weight
385 g (0.85 lb)
Filter diameter
62 mm
Min. focus distance
50 cm (19.69 in)
Length
74.2 mm (2.92 in)
Diameter
67.5 mm (2.66 in)

Manufacturer data: rokinon.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 / Rokinon 50mm F1.2 ED AS UMC CS fit?

The Samyang / Rokinon 50mm F1.2 ED AS UMC CS is designed for APS-C sensors. On APS-C Sony E-Mount cameras its field of view equals 75 mm in full-frame terms. Full-frame bodies use it in APS-C (crop) mode, recording only part of the sensor and fewer megapixels.

Sony E-Mount cameras

Full frame (in APS-C mode):
Sony A7R VI,Sony A7 V,Sony FX2,Sony A1 II,Sony A9 III,Sony A7C II,Sony A7CR,Sony ZV-E1,Sony A7R V,Sony A7 IV,Sony A1,Sony FX3,Sony A7S III,Sony A7C,Sony FX6,Sony A7R IV (A7R IVA),Sony A9 II,Sony FX9,Sony A7 III,Sony A7R III (A7R IIIA),Sony A9,Sony A7R II,Sony A7S II,Sony A7 II,Sony A7S,Sony A7,Sony A7R
APS-C:
Sony ZV-E10 II,Sony A6700,Sony FX30,Sony ZV-E10,Sony A6600,Sony A6100,Sony A6400,Sony A6500,Sony A6300,Sony QX1 (ILCE-QX1),Sony A6000,Sony A5100,Sony A3500,Sony A5000,Sony A3000,Sony NEX-5T,Sony NEX-3N,Sony NEX-6,Sony NEX-5R,Sony NEX-F3,Sony NEX-7,Sony NEX-5N,Sony NEX-C3,Sony NEX-5,Sony NEX-3

Samyang / Rokinon 50mm F1.2 ED AS UMC CS compared

Key specs side by side with the most similar Sony E-Mount lenses.

LensSamyang / Rokinon 50mm F1.2 ED AS UMC CSTTArtisan 50mm f/1.27artisans 50mm F1.2Pergear 50mm F1.2
Focal length50 mm50 mm50 mm50 mm
Max. aperturef/1.2f/1.2f/1.2f/1.2
Weight385 g336 g410 g360 g
Filter diameter62 mm52 mm55 mm–
Min. focus distance50 cm50 cm70 cm70 cm
Length74.2 mm60 mm68 mm–
Autofocusnononono
Image stabilizationnononono
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Samyang / Rokinon 50mm F1.2 ED AS UMC CS: FAQ

Does the Samyang / Rokinon 50mm F1.2 ED AS UMC CS have autofocus?

No, the Samyang / Rokinon 50mm F1.2 ED AS UMC CS has no autofocus; you focus it manually.

Does the Samyang / Rokinon 50mm F1.2 ED AS UMC CS have image stabilization?

No, the Samyang / Rokinon 50mm F1.2 ED AS UMC CS has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the Samyang / Rokinon 50mm F1.2 ED AS UMC CS weigh?

The Samyang / Rokinon 50mm F1.2 ED AS UMC CS weighs 385 g. It is 74.2 mm long with a diameter of 67.5 mm.

What filter size does the Samyang / Rokinon 50mm F1.2 ED AS UMC CS use?

The Samyang / Rokinon 50mm F1.2 ED AS UMC CS takes 62 mm screw-in filters.

How close can the Samyang / Rokinon 50mm F1.2 ED AS UMC CS focus?

The minimum focus distance of the Samyang / Rokinon 50mm F1.2 ED AS UMC CS is 50 cm, measured from the sensor plane.

Is the Samyang / Rokinon 50mm F1.2 ED AS UMC CS a full-frame lens?

No, the Samyang / Rokinon 50mm F1.2 ED AS UMC CS is an APS-C lens. On APS-C cameras its field of view equals 75 mm in full-frame terms.

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