§ 03 Head to head

Sigma 135mm F1.8 DG HSM Art vs Sigma A 135 mm f/1.4 DG

Sigma 135mm f/1.8 is 300 g lighter. Sigma 135mm f/1.4 is 0.7 stops brighter maximum aperture.

The Sigma 135mm F1.8 DG HSM Art is a 135mm f/1.8 prime, and the Sigma A 135 mm f/1.4 DG is a 135mm f/1.4 prime. On paper the Sigma 135mm F1.8 DG HSM Art comes out ahead, 4 advantages to 3, but which one suits you depends on what you shoot.

01

Key differences

From manufacturer specifications

Why is the Sigma 135mm F1.8 DG HSM Art better than the Sigma A 135 mm f/1.4 DG?

  • 300 g lighter (1130 g vs 1430 g)
  • 21 mm shorter (114.9 mm vs 135.5 mm long)
  • Focuses 23 cm closer (0.88 m vs 1.1 m)
  • Smaller filter thread (82 mm vs 105 mm)

Why is the Sigma A 135 mm f/1.4 DG better than the Sigma 135mm F1.8 DG HSM Art?

  • 0.7 stops brighter maximum aperture (f/1.4 vs f/1.8)
  • More aperture blades (13 vs 9)
  • Newer design (2025 vs 2017)
02

Which should you buy?

By use
  • portrait For portrait photography, the Sigma A 135 mm f/1.4 DG has the edge: its f/1.4 aperture gathers more light than f/1.8.
  • low-light For low-light shooting, the Sigma A 135 mm f/1.4 DG has the edge: its f/1.4 aperture gathers more light than f/1.8.
03

Specification

18 rows · better value flagged ◆
SpecificationSigma 135mm F1.8 DG HSM ArtSigma A 135 mm f/1.4 DG
Focal length135mm 135mm
Maximum aperturef/1.8 f/1.4 ◆
Minimum aperturef/16 f/16
Lens typeTelephoto prime lens Prime lens
FormatFull Frame Full frame
Weight1,130 g (2.49 lbs) ◆1430 g
Dimensions91.4 mm (diameter) x 114.9 mm (length) 135.5 x 111.7 mm
Minimum focusing distance0.875 m (34.4 in) ◆1.1 m
Maximum magnification0.2x —
Image stabilizationNo No
Weather sealingYes (dust and splash resistant) —
Aperture ringNo —
Aperture blades9 (rounded) 13 ◆
Optical construction13 elements in 10 groups 17 elements / 14 groups
Filter size82 mm ◆105 mm
Lens mountCanon EF, Nikon F, Sigma SA, Sony E Sony E, L-Mount
Released2017 2025
Price—$1,899 list price
04

Size

Drawn to relative scale
  • A · Sigma
  • B · Sigma
  • 114.9 × 91.4 mm
  • 135.5 × 111.7 mm

The Sigma A 135 mm f/1.4 DG is 21 mm longer and 300 g heavier than the Sigma 135mm F1.8 DG HSM Art.

05

Sample frames

Shot on each lens

Sigma 135mm F1.8 DG HSM Art

incomplete church
incomplete church by liattbaifosafsn
ithaki steps
ithaki steps by liattbaifosafsn
shadow of odysseus
shadow of odysseus by liattbaifosafsn
asos
asos by liattbaifosafsn

Sigma A 135 mm f/1.4 DG

IRIS MONO
IRIS MONO by photo-tez
DEEP DEPTH
DEEP DEPTH by photo-tez
B/W SHADOW
B/W SHADOW by photo-tez
Bokeh Back
Bokeh Back by photo-tez
06

Video reviews

4 on YouTube
Video thumbnail for Sigma 135mm F1.8 DG HSM Art review 1
Video thumbnail for Sigma 135mm F1.8 DG HSM Art review 2
Video thumbnail for Sigma A 135 mm f/1.4 DG review 1
Video thumbnail for Sigma A 135 mm f/1.4 DG review 2
07

Questions

Which lens has the brighter aperture, the Sigma 135mm F1.8 DG HSM Art or the Sigma A 135 mm f/1.4 DG?
The Sigma A 135 mm f/1.4 DG opens to f/1.4, against f/1.8 on the Sigma 135mm F1.8 DG HSM Art, 0.7 stops brighter.
Which is lighter, the Sigma 135mm F1.8 DG HSM Art or the Sigma A 135 mm f/1.4 DG?
The Sigma 135mm F1.8 DG HSM Art weighs 1130 g, 300 g less than the Sigma A 135 mm f/1.4 DG (1430 g).
Which focuses closer, the Sigma 135mm F1.8 DG HSM Art or the Sigma A 135 mm f/1.4 DG?
The Sigma 135mm F1.8 DG HSM Art focuses down to 0.88 m, against 1.1 m for the Sigma A 135 mm f/1.4 DG.
Do the Sigma 135mm F1.8 DG HSM Art and the Sigma A 135 mm f/1.4 DG have image stabilization?
No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
Is the Sigma 135mm F1.8 DG HSM Art or the Sigma A 135 mm f/1.4 DG better for portrait photography?
For portrait photography, the Sigma A 135 mm f/1.4 DG has the edge: its f/1.4 aperture gathers more light than f/1.8.
Is the Sigma 135mm F1.8 DG HSM Art or the Sigma A 135 mm f/1.4 DG better for low-light shooting?
For low-light shooting, the Sigma A 135 mm f/1.4 DG has the edge: its f/1.4 aperture gathers more light than f/1.8.
08

Other comparisons