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Sigma 20mm f/1.4 DG HSM Art vs Panasonic Lumix S 20mm F2.5

Both are Leica L prime lenses for full frame. Here is what actually differs.

Pick the Sigma 20mm f/1.4 DG HSM Art if

  • You need 1⅔ stops more light for low light or background blur (f/1.4 vs f/2.5)
  • You care about the shape of out-of-focus highlights: 9 aperture blades vs 7

Pick the Panasonic Lumix S 20mm F2.5 if

  • You want the lighter lens to carry: 893 g lighter (142 g vs 1035 g)
  • You shoot close-ups: it focuses down to 0.18 m vs 0.28 m
  • You want a compact lens: 40.9 mm vs 153.75 mm long

Spec differences

12 differences
Specifications that differ between the Sigma 20mm f/1.4 DG HSM Art and the Panasonic Lumix S 20mm F2.5
Sigma 20mm f/1.4 DG HSM Art Panasonic Lumix S 20mm F2.5
Brand
Sigma
Panasonic
Max aperture
f/1.4 1⅔ stops faster
f/2.5
Weight
1035 g
142 g lighter
Length
153.75 mm
40.9 mm shorter
Diameter
90.7 mm
69.4 mm slimmer
Filter thread
not listed
62 mm
Min focus distance
0.28 m
0.18 m closer
Max magnification
0.14×
0.15× larger
Aperture blades
9 more blades
7
Optical design
15 elements / 11 groups
11 elements / 9 groups
Autofocus motor
HSM
not listed
Weather sealing
not listed
Yes
5 identical specs hidden: mount, type, format, focal length, image stabilization. Show all
Mount
Leica L both
Type
Prime both
Format
Full frame both
Focal length
20mm both
Image stabilization
No both

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