Leica Summilux-SL 50 f/1.4 ASPH. (2026) vs Leica APO-Summicron-SL 50 f/2 ASPH.
Key differences
- —The Summilux-SL 50 f/1.4 ASPH. (2026) is 156g lighter (584g vs 740g).
- —The Summilux-SL 50 f/1.4 ASPH. (2026) is faster: f/1.4 vs f/2 (≈1.0 stops more light).
- —For close-ups the APO-Summicron-SL 50 f/2 ASPH. reaches 0.20× vs 0.13×.
Which to choose
- Summilux-SL 50 f/1.4 ASPH. (2026)
Choose it for:
- +The lightest option: 584g, 156g less than the next
- +The brightest aperture: f/1.4, about 1.0 stop more light
- APO-Summicron-SL 50 f/2 ASPH.
Choose it for:
- +The best close-ups: 0.20× magnification
Computed from published specs, confirmed launch prices and, where every lens has at least two reviews, review scores.
- Mount
- L-Mount (FF)
- L-Mount (FF)
- Focal length
- 50mm
- 50mm
- Max aperture
- F1.4◆
- F2
- Weight
- 584g◆
- 740g
- Dimensions ⌀ × L
- 74.0 × 75.5mm
- 73.0 × 102.0mm
- Volume
- 325 cm³◆
- 427 cm³
- Density
- 1.80 g/cm³
- 1.73 g/cm³
- Filter thread
- ⌀67mm
- ⌀67mm
- Min focus
- 0.50m
- 0.35m◆
- Max magnification
- 0.13×
- 0.20×◆
- Elements / groups
- 11 / 6
- 12 / 10
- Aperture blades
- 11
- Not published
- Focus drive
- Voice-coil motor
- Stepping motors (Dual Syncro Drive)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- —
- Released
- 2026
- 2019
- MSRP (USD)
- Unconfirmed
- $4,495
- Sharpness
- 8.8
- 9.6◆
- Bokeh Rendering
- 8.8
- 8.9◆
- Autofocus Speed
- 8.6
- 8.6
- Flare Resistance
- 8.3
- 8.5◆
- Build / Sealing
- 9.2
- 9.4◆
- Value / Size
- 6.5
- 6.5
Performance overlay
- Summilux-SL 50 f/1.4 ASPH. (2026)
- APO-Summicron-SL 50 f/2 ASPH.
◆ marks the best value in a row. Scores are 0–10 editorial ratings.