Sigma 24mm F1.4 DG HSM | A vs Nikon Nikkor 24mm f/2.8 AI-S

Both are Nikon F prime lenses for full frame. Here is what actually differs.

Sigma

Pick the Sigma 24mm F1.4 DG HSM | A if

You need 2 stops more light for low light or background blur (f/1.4 vs f/2.8)
You want autofocus (HSM): the Nikon Nikkor 24mm f/2.8 AI-S is manual focus only
You shoot close-ups: it focuses down to 0.25 m vs 0.3 m

Pick the Nikon Nikkor 24mm f/2.8 AI-S if

You want the lighter lens to carry: 395 g lighter (270 g vs 665 g)
You want a compact lens: 58 mm vs 90.2 mm long

Spec differences

11 differences

Specifications that differ between the Sigma 24mm F1.4 DG HSM | A and the Nikon Nikkor 24mm f/2.8 AI-S
	Sigma 24mm F1.4 DG HSM \| A	Nikon Nikkor 24mm f/2.8 AI-S
Brand	Sigma	Nikon
Max aperture	f/1.4 2 stops faster	f/2.8
Weight	665 g	270 g lighter
Length	90.2 mm	58 mm shorter
Diameter	85 mm	63.5 mm slimmer
Filter thread	77 mm	52 mm
Min focus distance	0.25 m closer	0.3 m
Max magnification	0.19×	not listed
Aperture blades	9	not listed
Optical design	15 elements / 11 groups	9 elements / 9 groups
Autofocus motor	HSM	Manual focus

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

Mount: Nikon F both
Type: Prime both
Format: Full frame both
Focal length: 24mm both
Image stabilization: No both

Our notes

Sigma 24mm F1.4 DG HSM | A

The Sigma 24mm F1.4 DG HSM | A is a full-frame fast wide-angle prime lens covering 24mm at f/1.4 for Nikon F mount cameras, with Hyper Sonic Motor autofocus. A wide-aperture wide-angle prime from Sigma's Art line, popular for astrophotography and landscapes.

Our notes