Leica APO-Summicron-SL 50 f/2 ASPH. vs Sigma 50mm F1.4 DG HSM | Art (L-Mount)
Key differences
- —The APO-Summicron-SL 50 f/2 ASPH. is 165g lighter (740g vs 905g).
- —The 50mm F1.4 DG HSM | Art (L-Mount) is faster: f/1.4 vs f/2 (≈1.0 stops more light).
- —At launch the 50mm F1.4 DG HSM | Art (L-Mount) cost $3,546 less ($949 vs $4,495).
- —For close-ups the APO-Summicron-SL 50 f/2 ASPH. reaches 0.20× vs 0.18×.
Which to choose
- APO-Summicron-SL 50 f/2 ASPH.
Choose it for:
- +The lightest option: 740g, 165g less than the next
- +The best close-ups: 0.20× magnification
- +Weather sealing
- 50mm F1.4 DG HSM | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.4, about 1.0 stop more light
- +The lowest launch price: $949, $3,546 less
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
- F2
- F1.4◆
- Weight
- 740g◆
- 905g
- Dimensions ⌀ × L
- 73.0 × 102.0mm
- 85.4 × 123.9mm
- Volume
- 427 cm³◆
- 710 cm³
- Density
- 1.73 g/cm³
- 1.28 g/cm³
- Filter thread
- ⌀67mm
- ⌀77mm
- Min focus
- 0.35m◆
- 0.40m
- Max magnification
- 0.20×◆
- 0.18×
- Elements / groups
- 12 / 10
- 13 / 8
- Aperture blades
- Not published
- 9
- Focus drive
- Stepping motors (Dual Syncro Drive)
- HSM (Hyper Sonic Motor)
- Stabilisation
- —
- —
- Weather sealed
- Yes
- —
- Aperture ring
- —
- —
- Released
- 2019
- 2019
- MSRP (USD)
- $4,495
- $949◆
- Sharpness
- 9.6◆
- 9.0
- Bokeh Rendering
- 8.9◆
- 8.4
- Autofocus Speed
- 8.6◆
- 7.4
- Flare Resistance
- 8.5◆
- 7.8
- Build / Sealing
- 9.4◆
- 8.0
- Value / Size
- 6.5
- 7.5◆
Performance overlay
- APO-Summicron-SL 50 f/2 ASPH.
- 50mm F1.4 DG HSM | Art (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.