Leica
APO-Summicron-SL 50mm f/2 ASPH.
Leica L Mount
APO-Summicron-SL 50mm f/2 ASPH. — 50mm f/2 for Leica L, a popular choice in the leica lineup.
$2,595
Launch priceReleased Aug 2019
Sony
FE 50mm F1.4 GM
Sony E Mount
FE 50mm F1.4 GM — 50mm f/1.4 for Sony E, a popular choice in the sony lineup.
$1,799
Launch priceReleased Mar 2025
FE 50mm F1.4 GM is 5.6 years newer.
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Wins
APO-Summicron-SL 50mm f/2 ASPH.
Wins
FE 50mm F1.4 GM
1 categories tied
Which would you choose?
TL;DR — Key differences
- BFE 50mm F1.4 GM has lower Max aperture (Wide) (f/1.4 vs f/2)
- BFE 50mm F1.4 GM has lower Max aperture (Tele) (f/1.4 vs f/2)
- AAPO-Summicron-SL 50mm f/2 ASPH. has higher Max magnification (0.2 × vs 0.15 ×)
- AAPO-Summicron-SL 50mm f/2 ASPH. has lower Length (102 mm vs 131 mm)
- BFE 50mm F1.4 GM has lower Weight (580 g vs 740 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareAPO-Summicron-SL 50mm f/2 ASPH.
⌀73 × 102 mm
740 g (1.63 lb / 26.10 oz)
Credit card
85.6 × 54 mm
for scale
FE 50mm F1.4 GM
⌀81 × 131 mm
580 g (1.28 lb / 20.46 oz)
APO-Summicron-SL 50mm f/2 ASPH. is 29mm shorter and 8mm narrower than FE 50mm F1.4 GM.
APO-Summicron-SL 50mm f/2 ASPH. is 160 g heavier than FE 50mm F1.4 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 50mm f/2 ASPH.
- ✓
Special elements
Adds 3 Aspherical
- ✓
Length
102 mm vs 131 mm — lower is better
- ✓
Diameter
73 mm vs 81 mm — lower is better
- ✓
Max magnification
0.2 × vs 0.15 × — higher is better
Reasons to choose the FE 50mm F1.4 GM
- ✓
Special elements
Adds Aspherical, ED
- ✓
Max aperture (Wide)
f/1.4 vs f/2 — lower is better
- ✓
Max aperture (Tele)
f/1.4 vs f/2 — lower is better
- ✓
Weight
580 g vs 740 g — lower is better
- ✓
Min focus distance
30 cm vs 35 cm — 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.
APO-Summicron-SL 50mm 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 F1.4 GM
Pros
- ✓Bright f/1.4 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the APO-Summicron-SL 50mm f/2 ASPH. and FE 50mm F1.4 GM at major authorized retailers.
Leica APO-Summicron-SL 50mm f/2 ASPH.
Sony FE 50mm F1.4 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.