Rokinon 21mm f/1.4 Lens for Micro Four Thirds (Black)

BH #RO2114MFT • MFR #RK21M-MFT
Rokinon
Key Features
  • Micro Four Thirds System Lens
  • 42mm (35mm Equivalent)
  • Aperture Range: f/1.4 to f/22
  • 3 Aspherical Elements, 1 ED Element
Combining a wide-angle perspective with a fast maximum aperture, this 21mm f/1.4 Lens from Rokinon is designed for Micro Four Thirds mirrorless cameras and provides a 42mm equivalent focal length. One extra-low dispersion element and a trio of aspherical elements are incorporated into the lens construction, and help to control aberrations and distortions for increased clarity and sharpness. The bright f/1.4 maximum aperture excels in difficult lighting conditions and also enables greater control over focus placement, which is further complemented by the manual focus design and rounded nine-blade diaphragm to produce a quality of bokeh. Additionally, an Ultra Multi-Coating has also been applied to all lens elements to reduce lens flare and ghosting for increased contrast and color fidelity when working in harsh lighting conditions.
No Longer Available
Trade in your gear for cash: Learn more

True Know-How

Ask Our Experts

800.606.6969

Rokinon 21mm f/1.4 Overview

Combining a wide-angle perspective with a fast maximum aperture, this 21mm f/1.4 Lens from Rokinon is designed for Micro Four Thirds mirrorless cameras and provides a 42mm equivalent focal length. One extra-low dispersion element and a trio of aspherical elements are incorporated into the lens construction, and help to control aberrations and distortions for increased clarity and sharpness. The bright f/1.4 maximum aperture excels in difficult lighting conditions and also enables greater control over focus placement, which is further complemented by the manual focus design and rounded nine-blade diaphragm to produce a quality of bokeh. Additionally, an Ultra Multi-Coating has also been applied to all lens elements to reduce lens flare and ghosting for increased contrast and color fidelity when working in harsh lighting conditions.

This 21mm f/1.4 lens is designed for Micro Four Thirds mirrorless cameras and provides a 42mm equivalent focal length.
Bright f/1.4 maximum aperture is ideal for working in low-light conditions and also offers greater control over your focus position for selective focus applications.
One extra-low dispersion element and three aspherical elements are incorporated within the lens design and help to control chromatic and comatic aberrations, as well as reduce color fringing, for sharper, clearer imagery.
An Ultra Multi-Coating has been applied to all lens elements in order to suppress lens flare and ghosting for increased contrast and color accuracy.
This manual focus lens has a non-rotating 58mm front filter mount to better enable the use of polarizing, graduated ND, and other filter types that require precise positioning. Additionally, its internal focus design maintains the overall length of the lens during use.
Rounded nine-blade diaphragm contributes to a pleasing out-of-focus quality when using selective focus or shallow depth of field techniques.

Rokinon 21mm f/1.4 Specs

Focal Length21mm (35mm Equivalent Focal Length: 42mm)
Maximum Aperturef/1.4
Minimum Aperturef/22
Lens MountMicro Four Thirds
Format CompatibilityMicro Four Thirds
Angle of View55.6°
Minimum Focus Distance11.81" / 30 cm
Optical Design8 Elements in 7 Groups
Diaphragm Blades9, Rounded
Focus TypeManual Focus
Image StabilizationNone
Filter Size58 mm (Front)
Dimensions (ø x L)2.53 x 2.61" / 64.3 x 66.4 mm
Weight10.05 oz / 285 g
Packaging Info
Package Weight1.005 lb
Box Dimensions (LxWxH)4.95 x 4.8 x 4.7"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

It says, "APS-C Format" and "31.5mm (35mm ...

It says, "APS-C Format" and "31.5mm (35mm Equivalent)" Does that mean on a full frame camera, such as the a7ii that this would be look identical to a 35mm focal length and not a 21mm?
Asked by: Aidan
This APS-C lens will push the camera into a crop mode that will give you a 31.5mm field of view.
Answered by: Reuben
Date published: 2019-05-23

question

How's the video performance of this lens on Sony mirrorless cameras?
Asked by: Yetesh S.
It is a sharp lens, it can lend itself to some great video, if that is how you choose to use it.
Answered by: Andrea O.
Date published: 2018-08-26

question

Is the focus a 'focus by wire' system, or a mechanical focus?
Asked by: Porter C.
It's a manual focus lens but it's very easy to focus if your camera has focus peaking feature. Setting the focus distance to infinity and aperture f8 everything over 3m will be tack sharp.
Answered by: Stephen A.
Date published: 2018-08-26

question

So if this was used on the gh4 it would be a 42 mm lens because of it being a micro 4/3 cropped sensor?
Asked by: andrew g.
Yes, while it is a 21mm lens, it has a field of view of a 42mm lens (in terms of 35mm photography).
Answered by: Andrea O.
Date published: 2018-08-26

question

will this fit on the gh4?
Asked by: andrew g.
Yes it will. It will fit all micro four third camera's wether it be panasonic or olympus camera's. I had the same concerns for my sony E lens camera and the Rokinon 21mm F/1.4 turned out to be a very good lens!
Answered by: DERRICK F.
Date published: 2018-08-26

question

If using this on a crop sensor would you get the 21mm view or still the 1.6 crop factor on canon?
Asked by: Anonymous
1.6 crop
Answered by: Howard C.
Date published: 2019-11-14

question

hi there, will this work on sony a7 ?
Asked by: Anonymous
As far as I know. Be aware that's it's kind of a mediocre lens. You're better off with a Sigma 20mm.
Answered by: Robert S.
Date published: 2018-08-26

question

Hi, does this lens have clicking aperture ring or smooth motion?
Asked by: Juiche H.
aperture clicks' in half stops
Answered by: MARC H.
Date published: 2018-08-26
  • y_2020, m_5, d_1, h_12CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.5
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_12
  • loc_en_US, sid_1185688, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_bhphotovideo
036

Close

Close

Close