Sony
FE 20-70mm F4 G
Sony E Mount
FE 20-70mm F4 G — 20–70mm f/4 for Sony E, a popular choice in the sony lineup.
$1,099
Launch priceReleased Jan 2023
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 priceReleased Mar 2021
FE 20-70mm F4 G is 1.8 years newer.
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Wins
FE 20-70mm F4 G
Wins
FE 50mm F1.2 GM
1 categories tied
Which would you choose?
TL;DR — Key differences
- BFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/4)
- BFE 50mm F1.2 GM has lower Max aperture (Tele) (f/1.2 vs f/4)
- AFE 20-70mm F4 G has higher Max magnification (0.39 × vs 0.17 ×)
- AFE 20-70mm F4 G has lower Weight (488 g vs 778 g)
- AFE 20-70mm F4 G has lower Min focus distance (30 cm vs 40 cm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareFE 20-70mm F4 G
⌀76 × 99 mm
488 g (1.08 lb / 17.21 oz)
Credit card
85.6 × 54 mm
for scale
FE 50mm F1.2 GM
⌀87 × 108 mm
778 g (1.72 lb / 27.44 oz)
FE 20-70mm F4 G is 9mm shorter and 11mm narrower than FE 50mm F1.2 GM.
FE 20-70mm F4 G is 290 g lighter than FE 50mm F1.2 GM.
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
Why pick one over the other
Reasons to choose the FE 20-70mm F4 G
- ✓
Special elements
Adds 3 Aspherical, 1 ED, 1 Super ED
- ✓
Weight
488 g vs 778 g — lower is better
- ✓
Min focus distance
30 cm vs 40 cm — lower is better
- ✓
Max magnification
0.39 × vs 0.17 × — higher is better
- ✓
Diameter
76 mm vs 87 mm — lower is better
- ✓
Length
99 mm vs 108 mm — lower is better
Reasons to choose the FE 50mm F1.2 GM
- ✓
Special elements
Adds 3 XA (extreme aspherical)
- ✓
Max aperture (Wide)
f/1.2 vs f/4 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/4 — lower is better
- ✓
Custom function button
Only FE 50mm F1.2 GM supports it
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 20-70mm F4 G
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Sony E mount compatibility
Cons
- –No optical stabilization — relies on body IBIS
- –Slower maximum aperture limits low-light performance
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
Decided which one is right for you?
Compare live prices for the FE 20-70mm F4 G and FE 50mm F1.2 GM at major authorized retailers.
Sony FE 20-70mm F4 G
Sony FE 50mm F1.2 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.