OM System
M.Zuiko Digital ED 40-150mm F4 PRO
Micro Four Thirds Mount
Lightweight 40–150mm travel telephoto with F4 constant aperture and IP53 sealing.
$699
Launch priceReleased Feb 2020
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 50mm F1.2 GM is 1.1 years newer.
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Wins
M.Zuiko Digital ED 40-150mm F4 PRO
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)
- AM.Zuiko Digital ED 40-150mm F4 PRO has lower Weight (382 g vs 778 g)
- BFE 50mm F1.2 GM has lower Min focus distance (40 cm vs 70 cm)
- AM.Zuiko Digital ED 40-150mm F4 PRO has lower Diameter (68.5 mm vs 87 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareM.Zuiko Digital ED 40-150mm F4 PRO
⌀69 × 100 mm
382 g (0.84 lb / 13.47 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)
M.Zuiko Digital ED 40-150mm F4 PRO is 8mm shorter and 19mm narrower than FE 50mm F1.2 GM.
M.Zuiko Digital ED 40-150mm F4 PRO is 396 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 M.Zuiko Digital ED 40-150mm F4 PRO
- ✓
Special elements
Adds 2 Aspherical, 2 ED, 1 Super ED…
- ✓
Weight
382 g vs 778 g — lower is better
- ✓
Diameter
68.5 mm vs 87 mm — lower is better
- ✓
Length
99.9 mm vs 108 mm — lower is better
- ✓
Max magnification
0.21 × vs 0.17 × — higher 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
- ✓
Control ring
Only FE 50mm F1.2 GM supports it
- ✓
Custom function button
Only FE 50mm F1.2 GM supports it
- ✓
Min focus distance
40 cm vs 70 cm — lower is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 40-150mm F4 PRO
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Lightweight design easy to carry all day
- ✓Native Micro Four Thirds 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 M.Zuiko Digital ED 40-150mm F4 PRO and FE 50mm F1.2 GM at major authorized retailers.
OM System M.Zuiko Digital ED 40-150mm F4 PRO
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.