OM System
M.Zuiko Digital ED 40-150mm F2.8 PRO
Micro Four Thirds Mount
Professional telephoto zoom with constant F2.8, dual linear AF, and IPX1 weather sealing.
$1,499
Launch priceReleased Sep 2013
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 7.5 years newer.
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Wins
M.Zuiko Digital ED 40-150mm F2.8 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 Min focus distance (40 cm vs 140 cm)
- BFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/2.8)
- BFE 50mm F1.2 GM has lower Max aperture (Tele) (f/1.2 vs f/2.8)
- BFE 50mm F1.2 GM has lower Length (108 mm vs 160 mm)
- AM.Zuiko Digital ED 40-150mm F2.8 PRO has higher Max magnification (0.21 × vs 0.17 ×)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareM.Zuiko Digital ED 40-150mm F2.8 PRO
⌀77 × 160 mm
880 g (1.94 lb / 31.04 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 F2.8 PRO is 52mm longer and 10mm narrower than FE 50mm F1.2 GM.
M.Zuiko Digital ED 40-150mm F2.8 PRO is 102 g heavier 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 F2.8 PRO
- ✓
Special elements
Adds 1 Super ED, 2 ED, 2 Aspherical…
- ✓
Diameter
77 mm vs 87 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)
- ✓
Min focus distance
40 cm vs 140 cm — lower is better
- ✓
Max aperture (Wide)
f/1.2 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/2.8 — lower is better
- ✓
Length
108 mm vs 160 mm — lower is better
- ✓
Weight
778 g vs 880 g — lower is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 40-150mm F2.8 PRO
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Micro Four Thirds mount compatibility
Cons
- –No optical stabilization — relies on body IBIS
- –Third-party or older alternatives may offer better value
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 F2.8 PRO and FE 50mm F1.2 GM at major authorized retailers.
OM System M.Zuiko Digital ED 40-150mm F2.8 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.