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Panasonic

LUMIX S PRO 50mm F1.4

Leica L Mount

LUMIX S PRO 50mm F1.4 — 50mm f/1.4 for Leica L, a popular choice in the panasonic lineup.

$2,299

Launch price

Released Oct 2019

vs

Sony

FE 50mm F1.4 GM

Sony E Mount

FE 50mm F1.4 GM — 50mm f/1.4 for Sony E, a popular choice in the sony lineup.

$1,799

Launch price

Released Mar 2025

FE 50mm F1.4 GM is 5.4 years newer.

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Wins

0categories

LUMIX S PRO 50mm F1.4

PortraitSports & Action

Wins

2categories

FE 50mm F1.4 GM

PortraitSports & Action

6 categories tied

TL;DR — Key differences

LUMIX S PRO 50mm F1.4 wins 0 categories·FE 50mm F1.4 GM wins 2 categories
  • BFE 50mm F1.4 GM has lower Weight (580 g vs 958 g)
  • BFE 50mm F1.4 GM has lower Length (131 mm vs 184 mm)

Key specs at a glance

LUMIX S PRO 50mm F1.4FE 50mm F1.4 GM
Focal Length50 mm50 mm
Max Aperturef/1.4f/1.4
MountLeica LSony E
CoverageFull FrameFull Frame
StabilizationNoNo
Weight958 g580 g
Min Focus30 cm30 cm
Filter Size77 mm77 mm

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseLUMIX S PRO 50mm F1.4FE 50mm F1.4 GM
Portrait
8.5Excellent
8.5Excellent
Sports & Action
6.5Good
6.5Good
Video & Hybrid
4.5Fair
4.5Fair
Landscape
4.0Fair
4.0Fair
Travel
2.0Limited
3.5Limited
Wildlife
3.0Limited
3.0Limited
Macro & Close-up
1.5Limited
1.5Limited

Why pick one over the other

Reasons to choose the LUMIX S PRO 50mm F1.4

No major spec wins compared to FE 50mm F1.4 GM.

Reasons to choose the FE 50mm F1.4 GM

  • Weight

    580 g vs 958 g — lower is better

  • Length

    131 mm vs 184 mm — lower is better

Shared specifications

Max aperture (Wide)

Both f/1.4

Max aperture (Tele)

Both f/1.4

Min focus distance

Both 30 cm

Max magnification

Both 0.15 ×

Internal focus

Both support internal focus

Diameter

Both 81 mm

Pros & cons at a glance

Editorially curated highlights and trade-offs.

LUMIX S PRO 50mm F1.4

Pros

  • Bright f/1.4 aperture for low light and subject separation
  • Prime design typically delivers strong sharpness and lighter weight
  • Weather-sealed construction for outdoor shooting

Cons

  • Premium price point
  • Relatively heavy for extended handheld use

FE 50mm F1.4 GM

Pros

  • Bright f/1.4 aperture for low light and subject separation
  • Prime design typically delivers strong sharpness and lighter weight
  • Weather-sealed construction for outdoor shooting

Cons

  • Third-party or older alternatives may offer better value

Decided which one is right for you?

Compare live prices for the LUMIX S PRO 50mm F1.4 and FE 50mm F1.4 GM at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

LUMIX S PRO 50mm F1.4
FE 50mm F1.4 GM
Focal length (Min)
50 mm
50 mm
Focal length (Max)
50 mm
50 mm
Max aperture (Wide)
f/1.4
f/1.4
Max aperture (Tele)
f/1.4
f/1.4
Elements
14
14
Groups
11
11
Special elements
Aspherical, ED
Aspherical, ED
LUMIX S PRO 50mm F1.4
FE 50mm F1.4 GM
Min focus distance
30 cm
30 cm
Max magnification
0.15 ×
0.15 ×
Autofocus motor
Linear / Stepping Motor
Linear / Stepping Motor
Internal focus
Yes
Yes
LUMIX S PRO 50mm F1.4
FE 50mm F1.4 GM
Optical stabilization
No
No
OIS effectiveness
0 stops
0 stops
LUMIX S PRO 50mm F1.4
FE 50mm F1.4 GM
Weight
958 g
580 g−378 g less
Length
184 mm
131 mm−53 mm less
Diameter
81 mm
81 mm
Filter thread size
77 mm
77 mm
Weather sealing
Yes
Yes
Diaphragm blades
11
11
LUMIX S PRO 50mm F1.4
FE 50mm F1.4 GM
Lens mount
Leica L
Sony E
Format coverage
Full Frame
Full Frame

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.