PRODUCT

20mm F1.8 ED AS UMC

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Explore Your Wideness

Samyang 20mm F1.8 ED AS UMC is a wide angle manual focus lenses for DSLR cameras with full frame sensor size. The flow of light is devised based on the uniqueness of the distance from glass to sensor in mirrorless cameras to create optimal performance.

The bright F1.8 aperture secures a fast shutter speed even under the restricted lighting conditions to offer best quality images. It will brighten up your everyday snapshots. Also it creates an outstanding out-of-focus look by highlighting the main object effectively. In between ultra-wide 16mm and wide-standard 24mm, 20mm lens is a perfect fit to explore wide angles not only for shooting indoor images such as concerts and interior photos but also street snaps. The 0.2m of minimum focusing adds versatility to the lens.

Based on Samyang Optics’ exceptional optical technology, Ultra Multi Coating and two aspherical lenses and three extra-low dispersion have been included among 13 glasses in 12 groups to minimise aberration and unnecessary light dispersion, delivering high resolution from the centre to the corners of the image.

Samyang 20mm F1.8 is compatible with 9 camera mounts: Canon EOS, Nikon AE, Pentax K, Sony ∝, Canon M, Fujifilm X, Samsung NX, Sony E, MFT.


  • Bright F1.8 Aperture

    With a bright aperture of F1.8, it maintains shutter speed in indoor and low light conditions and ensures instant response creating an out-of-focus effect to make the subject stand out.


  • Aspherical Lens

    With minimal spherical aberration and distortion, you can take pictures with incredible precision.


  • Minimized Flare and Ghost Effects with Ultra Multi Coating

    By reducing the impact of flares and ghosting effects in your pictures while ensuring excellent image quality and contrast from the center to the periphery, it offers crystal clear, sharp image quality.


  • Smooth Focus Ring

    Smooth focusing ensures precise control and produces images with incredible sharpness, making it the ideal choice for indoor and night shooting.


  • Beautiful Bokeh with 7 Aperture Blades

    Featuring 7 rounded blades, it adds an artistic touch to your pictures and creates a sense of soft dimension with incredible bokeh, perfect for out-of-focus portraits and night city landscapes.


  • 94.8° Ultra Wide Angle

    Ultra-wide angle allows to capture the creative space beyond what meets the eye and portray an expanded sense of dimension.

Technical Information
  • Specifications
    SPECIFICATIONS 1:1.8 20mm ED AS UMC
    APERTURE RANGE F1.8 ~ 22
    OPTICAL
    CONSTRUCTION
    13 ELEMENTS IN 12 GROUPS (2ASPHERICAL)
    MINIMUM
    FOCUSING DISTANCE
    0.2 m(0.66ft)
    FILTER SIZE Φ77.0mm
    MAXMUM DIAMETER Φ83.0mm
    MOUNT CANON
    EOS
    NIKON PENTAX
    K
    SONY
    α
    CANON
    M
    FUJIFILM
    X
    SAMSUNG
    NX
    SONY
    E
    MICRO
    FOUR-
    THIRDS
    ANGLE OF VIEW 35mm 94.8˚ 94.8˚ 94.8˚ 94.8˚ - - - 94.8˚ -
    ASP-C 66.9˚ 70.3˚ 70.3˚ 70.3˚ 66.9˚ 70.3˚ 70.3˚ 70.3˚ -
    FOUR-THIRDS
    4/3”
    - - - - - - - - 56.1˚
    LENGH(mm) 88.4 85.9 86.9 87.9 114.3 114.7 106.9 114.4 113.2
    WEIGHT(g) 497 488 493 498 525 565 515 525 520
  • MTF CHART 







  • Optical Construction 

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