Used Rokinon 20mm f/1.8 ED AS UMC Wide Angle Lens for Canon EF Mount

SKU: US1731431

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Reviews about this item

Review Summary

2020-06-25T09:00:37

Rated 4 out of 5

Excellent Astro Lens

Needs a little cleanup for chromatic aberration, more for vignette. Overall, excellent, even at f/1.8.

Wayne A.

2020-02-13T08:10:44

Rated 5 out of 5

clean prime

I can't tell you how often I use this lens, great for landscape/astro.

Christopher C.

2019-06-05T21:49:27

Rated 5 out of 5

Good lens so far

Only used it a few times but seems quite sharp for a cheaper lens. Should work well for landscape astrophotography which is the main purpose I bought it for.

Michael B.

2019-01-30T08:08:37

Rated 4 out of 5

Great Manual Focus Lens

This lens has good image quality and seems well built. It feels slightly large on a mirrorless camera and could be a little wider; but for the price, it's great.

KELWIN M.

2018-08-30T17:42:59

Rated 5 out of 5

Love it

LOVE LOVE LOVE this lens. It’s sharp and takes some amazing shots when paired with the Sony A7III

KYLE P.

2017-06-23T04:45:47

Rated 5 out of 5

Amazing bargain

The price/performance ratio of this lens is impressive; extremely sharp, very low distortion, and chromatic aberrations are well-controlled (what there is can easily be removed with software). I don't consider the fact that it's not AF to be a disadvantage. This isn't the focal length I would use when aiming for blurrred backgrounds, but the bokeh looked pretty good in the couple of test shots I took.

Simon R.

2017-06-20T11:08:27

Rated 5 out of 5

Very good lens

I had been looking for a wide angle prime lens for some time and finally got this lens when it went on sale. I am very satisfied with it. Good wide open and gets better as you stop it down a bit. As a long time SLR and now DSLR user manual focus is not an issue for me. Contrast is a bit low but easily fixed in post processing. All in all a very good lens for the money. i have attached a few photos I took at a local park when I first got the lens.

GEORGE W.

2017-06-06T13:58:48

Rated 5 out of 5

Great lens for gimbal use

I bought this lens for video. Specifically I was looking for a fast, lightweight, wide-angle that I could mount on an A7SII and fly it on a one-hand gimbal (Zhiyun Crane) in combination with an A7SII... this lens meets all the requirements. It has a long, very smooth focus throw which is perfect for manual focusing (especially when shooting wide open on a full frame sensor). Used in combination with Sony's clear image zoom this lens functions as 20-40mm, an excellent focal range for the type of run-and-gun video shooting that I do.

Mark L.

2017-05-24T11:36:18

Rated 4 out of 5

Worth The Money

So far, the Rokinon 20mm lens has proved to be a good performer on my full frame DSLR. It's slightly soft wide open, but it sharpens up quickly and displays no bad behavior. It is surprisingly good optically for being such a fast piece of glass. While manual focus can slow down the task of photography, the camera's focus confirmation light works well. The only knock on the lens is that the 77mm filter size does vignette slightly unless a thin filter is used.

JEFFREY C.

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Rokinon 20mm f/1.8 Specifications

General

General

Jump to...
  • Brand

    Rokinon

  • MPN

    RK20M-C

  • Lens Series

    N/A

  • Color

    Black

  • Lens Type

    Wide Angle

  • Lens Mount

    Canon EOS

  • Format Compatibility

    Full Frame

  • Focus Type

    Manual Focus

  • Focusing Technology

    Not Applicable

  • Closest Focus Distance

    7.87" / 19.99cm

  • Distance Information

    N/A

  • Built-In Motor

    Not Applicable

  • Focal Length

    20mm

  • Angle Of View

    94.8 deg.

  • 35mm Equivalent Focal Length

    Not Applicable

  • Coverage

    N/A

  • Minimum Aperture

    f/22

  • Maximum Aperture

    f/1.8

  • Maximum Magnification

    N/A

  • Lens Coating

    N/A

  • Aspherical Elements

    Yes

  • ED Glass Elements

    Yes

  • Filter Size

    77mm

Construction

Jump to...
  • Lens Elements / Groups

    13 Elements / 12 Groups

  • Diaphragm Blades

    7

  • Dimensions

    3.27 x 3.48" (83.1 x 88.4mm)

  • Weight

    17.2oz / 490g

Features

Jump to...
  • Image Stabilization Type

    None

  • Tripod Collar

    N/A

  • Waterproof / Water Resistant

    N/A

  • Dust Resistant

    N/A

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  • Covers & Caps (2)
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About Rokinon 20mm f/1.8 ED AS UMC Wide Angle Lens for Canon EF Mount

FEATURED REVIEWS

Very good lens

By GEORGE W.

I had been looking for a wide angle prime lens for some time and finally got this lens when it went on sale. I am very satisfied with it. Good wide open and gets better as you stop it down a bit. As a long time SLR and now DSLR user manual focus is not an issue for me. Contrast is a bit low but easily fixed in post processing. All in all a very good lens for the money. i have attached a few photos I took at a local park when I first got the lens.

Amazing bargain

By Simon R.

The price/performance ratio of this lens is impressive; extremely sharp, very low distortion, and chromatic aberrations are well-controlled (what there is can easily be removed with software). I don't consider the fact that it's not AF to be a disadvantage. This isn't the focal length I would use when aiming for blurrred backgrounds, but the bokeh looked pretty good in the couple of test shots I took.

A versatile addition to your photography toolkit, the Rokinon 20mm F1.8 ED AS UMC lens is a wide-angle, manual focus lens designed specifically for DSLR cameras with full-frame sensors. This lens is expertly crafted to optimize the flow of light based on the unique distance from glass to sensor in mirrorless cameras, ensuring peak performance and high-quality images.

Featuring a bright F1.8 aperture, this lens guarantees a fast shutter speed even in low-light conditions, enhancing the quality of your images. The F1.8 aperture also creates a stunning out-of-focus effect, effectively highlighting your main subject and adding depth to your photos.

The Rokinon 20mm F1.8 ED AS UMC lens offers an ultra-wide angle of 94.8 degrees, making it an ideal choice for a variety of photography styles. Whether you're capturing indoor events like concerts, taking interior photos, or shooting street snaps, this lens delivers exceptional results. With a minimum focusing distance of 0.2m, this lens adds versatility to your shooting capabilities.

Built on Rokinon Optics' exceptional optical technology, this lens features Ultra Multi Coating and two aspherical lenses. Additionally, it includes three extra-low dispersion elements among its 13 glasses in 12 groups. This design minimizes aberration and unnecessary light dispersion, delivering high resolution from the center to the corners of the image.

The Rokinon 20mm F1.8 ED AS UMC lens is compatible with 10 camera mounts, including Canon EOS, Nikon AE, Pentax K, Sony alpha, Canon M, Fujifilm X, Samsung NX, Sony E, FT, and MFT. This wide compatibility makes it a flexible and valuable addition to any photographer's gear.

Rokinon 20mm f/1.8 ED AS UMC Wide Angle Lens for Canon EF Mount Features

  • A wide-angle prime designed for full-frame DSLR cameras, this 20mm f/1.8 lens can also be used on APS-C models where it will provide a 32mm equivalent focal length.
  • Bright f/1.8 maximum aperture benefits working in low-light conditions and also affords greater control over depth of field for selective focus control.
  • Two aspherical elements are used to reduce spherical aberrations for increased sharpness and minimized distortion.
  • Three extra-low dispersion elements help to control chromatic aberrations and color fringing for improved clarity and color fidelity.
  • An Ultra Multi-Coating has been applied to individual elements in order to reduce flare and ghosting for increased contrast and a neutral color balance.
  • Manual focus operation allows for precise control with a minimum focusing distance of 7.9".
  • Rounded seven-blade diaphragm contributes to a smooth and pleasing bokeh quality.