Samyang 21mm F/1.4 ED AS UMC CS Bower, Rokinon, Walimex Pro

Specifications01

MountCANON EF-M

Focal length21mm

Max aperturef/1.4

TypeWide · Prime

Release year2015

Weight275 g

Filter size58 mm

Min focus distance0.28 m

Aperture blades9

Optical elements8

Groups7

AutofocusNo

StabilizationNo

Aperture controlAperture ring

Lens hoodBayonet-type (petal-shaped)

TeleconvertersNot available

Sensor coverageAPS-C

EraDigital era

Additional Info02

Lens TypeWide-angle prime lens

Summary02

Samyang/Rokinon/Walimex Pro 21mm f/1.4 wide-angle prime for Canon EF-M APS-C. Designed for low-light and landscape/astro use with a fast maximum aperture.

AI-assisted summary — verify against linked sources

Specifications from thelensdb

Where can this lens be adapted?

The Canon EF-M mount has a flange distance of 18 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

Native lenses set the aperture, and often the focus, electronically. On a plain adapter they do not work. Use an electronic adapter made for this pair; for many pairs nobody makes one. Fully manual lenses are the exception.

Nikon ZAdapter · 2 mm
Covers APS-C: it can vignette on a full-frame sensor.
Canon EF-MNative

No plain adapter reaches infinity focus on: Sony E, Canon RF, Fujifilm X, L-Mount, Micro Four Thirds, Fujifilm G (GFX), Canon EF, Nikon F.

Sources03

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Other Mounts03

No alternate mounts are indexed for this family yet.