24mm f/1.4 ED AS UMC

24mm
f/1.4
Prime

Quick answer

The Rokinon 24mm f/1.4 ED AS UMC is a wide-angle prime lens covering 24mm at f/1.4 for the Pentax K mount. Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.

About this lens

A 24mm f/1.4 fast wide-angle prime lens, the Rokinon 24mm f/1.4 ED AS UMC is designed for Pentax K mount bodies, with extra-low dispersion glass and aspherical elements. The wide view suits landscapes, architecture and environmental shots.

Rokinon 24mm f/1.4 ED AS UMC specifications

Brand: Rokinon
Mount: Pentax K
Focal length: 24mm
Maximum aperture: f/1.4
Lens type: Prime

What can you shoot with the Rokinon 24mm f/1.4 ED AS UMC?

At 24mm this is a wide-angle prime, which typically suits:

Landscapes and cityscapes
Street and travel photography
Environmental portraits and interiors

Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.

Full-frame equivalent and field of view

Calculated from the focal length and crop factor. Not measured.

Sensor	Crop	Equivalent	Horizontal FOV	Diagonal FOV
Full frame	1.0x	24mm	73.7°	84.1°
APS-C	1.5x	36mm	53.1°	62°

Try the field-of-view calculator

Frequently asked questions

What mount does the Rokinon 24mm f/1.4 ED AS UMC use?

It uses the Pentax K mount, so it fits Pentax K cameras directly.

What is the focal length of the Rokinon 24mm f/1.4 ED AS UMC?

It is a fixed 24mm lens with a maximum aperture of f/1.4. That makes it a wide-angle lens.

Is the Rokinon 24mm f/1.4 ED AS UMC a prime or a zoom lens?

It is a prime lens with a fixed 24mm focal length. Primes usually open wider than zooms; this one opens to f/1.4.

What is the Rokinon 24mm f/1.4 ED AS UMC equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 36mm on full frame, with a 53.1° horizontal and 62° diagonal field of view. These figures are calculated from the focal length and crop factor.