Leica
APO-Summicron-SL 90mm f/2 ASPH.
Leica L Mount
APO-Summicron-SL 90mm f/2 ASPH. — 90mm f/2 for Leica L, a popular choice in the leica lineup.
$4,195
Launch priceReleased Apr 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
APO-Summicron-SL 90mm f/2 ASPH. is 2.1 years newer.
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Wins
APO-Summicron-SL 90mm f/2 ASPH.
Wins
FE 50mm F1.2 GM
2 categories tied
TL;DR — Key differences
- BFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/2)
- BFE 50mm F1.2 GM has lower Max aperture (Tele) (f/1.2 vs f/2)
- BFE 50mm F1.2 GM has lower Min focus distance (40 cm vs 60 cm)
- AAPO-Summicron-SL 90mm f/2 ASPH. has lower Weight (640 g vs 778 g)
- AAPO-Summicron-SL 90mm f/2 ASPH. has lower Diameter (73 mm vs 87 mm)
Key specs at a glance
Size and weight, to scale
APO-Summicron-SL 90mm f/2 ASPH.
⌀73 × 109 mm
640 g (1.41 lb / 22.58 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)
APO-Summicron-SL 90mm f/2 ASPH. is 1mm longer and 14mm narrower than FE 50mm F1.2 GM.
APO-Summicron-SL 90mm f/2 ASPH. is 138 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 APO-Summicron-SL 90mm f/2 ASPH.
- ✓
Special elements
Adds 3 Aspherical
- ✓
Weight
640 g vs 778 g — lower is better
- ✓
Diameter
73 mm vs 87 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/2 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/2 — lower is better
- ✓
Min focus distance
40 cm vs 60 cm — lower is better
- ✓
Length
108 mm vs 109 mm — lower is better
Shared specifications
Max magnification
Both 0.17 ×
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.
APO-Summicron-SL 90mm f/2 ASPH.
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Leica L mount compatibility
Cons
- –Premium price point
- –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 APO-Summicron-SL 90mm f/2 ASPH. and FE 50mm F1.2 GM at major authorized retailers.
Leica APO-Summicron-SL 90mm f/2 ASPH.
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.