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Sony

FE 50mm F1.2 GM

Sony E Mount

Exquisite resolution and dreamy bokeh combine in a masterful f/1.2 prime.

$1,999

Launch price

Released Mar 2021

vs
AF 135mm F1.8 LAB FE

Viltrox

AF 135mm F1.8 LAB FE

Sony E Mount

AF 135mm F1.8 LAB FE — 135mm f/1.8 for Sony E, a popular choice in the viltrox lineup.

$999

Launch price

Released Sep 2024

AF 135mm F1.8 LAB FE is 3.5 years newer.

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Wins

6categories

FE 50mm F1.2 GM

PortraitSports & Action

Wins

1categories

AF 135mm F1.8 LAB FE

PortraitSports & Action

1 categories tied

Which would you choose?

TL;DR — Key differences

FE 50mm F1.2 GM wins 4 categories·AF 135mm F1.8 LAB FE wins 1 categories
  • AFE 50mm F1.2 GM has lower Min focus distance (40 cm vs 72 cm)
  • AFE 50mm F1.2 GM has lower Weight (778 g vs 1235 g)
  • AFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/1.8)
  • AFE 50mm F1.2 GM has lower Max aperture (Tele) (f/1.2 vs f/1.8)
  • BAF 135mm F1.8 LAB FE has higher Max magnification (0.25 × vs 0.17 ×)

Key specs at a glance

FE 50mm F1.2 GMAF 135mm F1.8 LAB FE
Focal Length50 mm135 mm
Max Aperturef/1.2f/1.8
MountSony ESony E
CoverageFull FrameFull-Frame
StabilizationNoNo
Weight778 g1235 g
Min Focus40 cm72 cm
Filter Size72 mm82 mm

Size and weight, to scale

FE 50mm F1.2 GM

87 × 108 mm

778 g (1.72 lb / 27.44 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

AF 135mm F1.8 LAB FE shown to scale

AF 135mm F1.8 LAB FE

93 × 146 mm

1235 g (2.72 lb / 43.56 oz)

FE 50mm F1.2 GM is 38mm shorter and 6mm narrower than AF 135mm F1.8 LAB FE.

FE 50mm F1.2 GM is 457 g lighter than AF 135mm F1.8 LAB FE.

Diameter (⌀) is the maximum barrel width; length is measured from the mount to the front of the lens.

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseFE 50mm F1.2 GMAF 135mm F1.8 LAB FE
Portrait
9.0Excellent
9.0Excellent
Sports & Action
6.5Good
6.5Good
Video & Hybrid
4.5Fair
4.5Fair
Landscape
3.0Limited
4.0Fair
Travel
2.0Limited
2.0Limited
Wildlife
3.0Limited
3.0Limited
Macro & Close-up
0.0Limited
2.0Limited

Why pick one over the other

Reasons to choose the FE 50mm F1.2 GM

  • Special elements

    Adds 3 XA (extreme aspherical)

  • Custom function button

    Only FE 50mm F1.2 GM supports it

  • Min focus distance

    40 cm vs 72 cm — lower is better

  • Weight

    778 g vs 1235 g — lower is better

  • Max aperture (Wide)

    f/1.2 vs f/1.8 — lower is better

  • Max aperture (Tele)

    f/1.2 vs f/1.8 — lower is better

  • Length

    108 mm vs 145.7 mm — lower is better

  • Diameter

    87 mm vs 93 mm — lower is better

Reasons to choose the AF 135mm F1.8 LAB FE

  • Special elements

    Adds 2 Aspherical, 2 ED, 2 HR

  • Max magnification

    0.25 × vs 0.17 × — higher is better

Shared specifications

Internal focus

Both support internal focus

Weather sealing

Both support weather sealing

Control ring

Both support control ring

Pros & cons at a glance

Editorially curated highlights and trade-offs.

FE 50mm F1.2 GM

Pros

  • Outstanding sharpness wide open at f/1.2
  • Stunningly smooth, circular bokeh with 11 aperture blades
  • Extremely quiet and fast autofocus tracking
  • Manageable size and weight for an f/1.2 lens

Cons

  • Expensive investment for a single focal length
  • Heavy compared to standard f/1.8 options
  • Some visible vignetting wide open

AF 135mm F1.8 LAB FE

Pros

  • Prime design typically delivers strong sharpness and lighter weight
  • Weather-sealed construction for outdoor shooting
  • Native Sony E mount compatibility

Cons

  • Third-party or older alternatives may offer better value

Decided which one is right for you?

Compare live prices for the FE 50mm F1.2 GM and AF 135mm F1.8 LAB FE at major authorized retailers.

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Full specifications

= category winner

FE 50mm F1.2 GM
AF 135mm F1.8 LAB FE
Focal length (Min)
50 mm
135 mm
Focal length (Max)
50 mm
135 mm
Max aperture (Wide)
f/1.2+1.2 stops wider
f/1.8
Max aperture (Tele)
f/1.2+1.2 stops wider
f/1.8
Elements
14
14
Groups
10
9
Special elements
3 XA (extreme aspherical)
2 Aspherical, 2 ED, 2 HR
FE 50mm F1.2 GM
AF 135mm F1.8 LAB FE
Min focus distance
40 cm−32 cm less
72 cm
Max magnification
0.17 ×
0.25 ×+47%
Autofocus motor
XD Linear Motors
Linear STM
Internal focus
Yes
Yes
FE 50mm F1.2 GM
AF 135mm F1.8 LAB FE
Optical stabilization
No
No
OIS effectiveness
0 stops
0 stops
FE 50mm F1.2 GM
AF 135mm F1.8 LAB FE
Weight
778 g−457 g less
1235 g
Length
108 mm−38 mm less
145.7 mm
Diameter
87 mm−6 mm less
93 mm
Filter thread size
72 mm
82 mm
Weather sealing
Yes
Yes
Diaphragm blades
11
11
FE 50mm F1.2 GM
AF 135mm F1.8 LAB FE
Lens mount
Sony E
Sony E
Format coverage
Full Frame
Full-Frame

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