Rokinon 24mm f/1.4 ED AS UMC vs Sigma 24mm f/1.8 EX DG ASPHERICAL MACRO

Both are Pentax K lenses for full frame. Here is what actually differs.

Rokinon

24mm f/1.4 ED AS UMC

f/1.4570 gMF

Full specs

Sigma

24mm f/1.8 EX DG ASPHERICAL MACRO

f/1.8

Full specs

Pick the Rokinon 24mm f/1.4 ED AS UMC if

You need ⅔ stop more light for low light or background blur (f/1.4 vs f/1.8)

Pick the Sigma 24mm f/1.8 EX DG ASPHERICAL MACRO if

You shoot close-ups: it focuses down to 0.18 m vs 0.25 m

Spec differences

10 differences

Specifications that differ between the Rokinon 24mm f/1.4 ED AS UMC and the Sigma 24mm f/1.8 EX DG ASPHERICAL MACRO
	Rokinon 24mm f/1.4 ED AS UMC	Sigma 24mm f/1.8 EX DG ASPHERICAL MACRO
Brand	Rokinon	Sigma
Type	Prime	Macro
Max aperture	f/1.4 ⅔ stop faster	f/1.8
Weight	570 g	not listed
Diameter	83 mm	not listed
Min focus distance	0.25 m	0.18 m closer
Max magnification	not listed	0.37×
Aperture blades	not listed	9
Optical design	13 elements / 12 groups	10 elements / 9 groups
Autofocus motor	Manual focus	not listed

5 identical specs hidden: mount, format, focal length, filter thread, image stabilization. Show all

Mount: Pentax K both
Format: Full frame both
Focal length: 24mm both
Filter thread: 77 mm both
Image stabilization: No both

Our notes

Rokinon 24mm f/1.4 ED AS UMC

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.

Our notes