Leica
Summilux-SL 50mm f/1.4 ASPH.
Leica L Mount
Summilux-SL 50mm f/1.4 ASPH. — 50mm f/1.4 for Leica L, a popular choice in the leica lineup.
$5,195
Launch priceReleased Sep 2015
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 9.4 years newer.
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Wins
Summilux-SL 50mm f/1.4 ASPH.
Wins
FE 50mm F1.4 GM
3 categories tied
TL;DR — Key differences
- BFE 50mm F1.4 GM has lower Min focus distance (30 cm vs 60 cm)
- ASummilux-SL 50mm f/1.4 ASPH. has lower Length (108 mm vs 131 mm)
- BFE 50mm F1.4 GM has lower Weight (580 g vs 680 g)
- BFE 50mm F1.4 GM has lower Diameter (81 mm vs 88 mm)
- BFE 50mm F1.4 GM has higher Max magnification (0.15 × vs 0.14 ×)
Key specs at a glance
Size and weight, to scale
Summilux-SL 50mm f/1.4 ASPH.
⌀88 × 108 mm
680 g (1.50 lb / 23.99 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)
Summilux-SL 50mm f/1.4 ASPH. is 23mm shorter and 7mm wider than FE 50mm F1.4 GM.
Summilux-SL 50mm f/1.4 ASPH. is 100 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 Summilux-SL 50mm f/1.4 ASPH.
- ✓
Special elements
Adds 2 Aspherical, 2 ED
- ✓
Length
108 mm vs 131 mm — lower is better
Reasons to choose the FE 50mm F1.4 GM
- ✓
Special elements
Adds Aspherical, ED
- ✓
Min focus distance
30 cm vs 60 cm — lower is better
- ✓
Weight
580 g vs 680 g — lower is better
- ✓
Diameter
81 mm vs 88 mm — lower is better
- ✓
Max magnification
0.15 × vs 0.14 × — higher is better
Shared specifications
Max aperture (Wide)
Both f/1.4
Max aperture (Tele)
Both f/1.4
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.
Summilux-SL 50mm f/1.4 ASPH.
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
- –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 Summilux-SL 50mm f/1.4 ASPH. and FE 50mm F1.4 GM at major authorized retailers.
Leica Summilux-SL 50mm f/1.4 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.