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Leica Summilux-SL 50 f/1.4 ASPH. — Summilux-SL 50 f/1.4 ASPH. (11 180), front view
Summilux-SL 50 f/1.4 ASPH. (11 180), front view© Leica Camera
LeicaSummilux-SL

Leica Summilux-SL 50 f/1.4 ASPH.

L · PRIME
50mm
APERTURE
1:1.4
AFWR

Launch MSRP

unconfirmed
Weight
1,065g
Filter
⌀82mm
Min focus
0.60m
Max mag.
0.10×
Formula
11E / 9G
Released
2016
AlternativesCompare with…
01

Specification sheet

Optical construction

11
Elements
9
Groups
0 LD · 2 ASPH
9 rounded blades
  • 2x Aspherical (4 aspherical surfaces)
  • 4x Anomalous partial dispersion glass
  • Aqua-Dura coating
Aperture range
f/1.4 — f/22

Physical & ergonomics

SUMMILUX-SL
Weight
1,065g
⌀ × length
88.0 × 124.0mm
Filter
⌀82mm
Weather sealed
Yes
Aperture ring
No

Autofocus actuator

Motorized internal focusing (motor type not stated)
Autofocus
Stabilisation
Body IBIS
Teleconverter
Not supported
AF speed score
7.0 / 10

Close-up performance

Min focus distance
0.60m
Max magnification
0.10× (1:10.0)
0.10×
0×0.25×0.5× half macro1.0× macro
02

Optical character

The original Summilux-SL 50 f/1.4 ASPH. was the first prime lens for Leica's SL system, released in 2016, and it was built with no concessions to size: 1,065g, 124mm long and an 82mm filter thread. Leica designed it to be the reference lens in its class, with high resolution and soft out-of-focus rendering at f/1.4 and consistent contrast throughout the focusing range.

The 11-element, 9-group design has two aspherical elements (four aspherical surfaces) and four elements of anomalous partial dispersion glass. Focusing is internal, so the length never changes, and the focus group itself includes an aspherical element. Close focus is 0.6m (1:10). The housing is sealed against dust and water splashes and the outer surfaces carry Aqua-Dura coating.

Reviewer consensus

We summarise professional reviews only after reading at least two independent ones. Not enough have been published or verified for this lens yet.

Owner sentiment

Owner feedback will appear once we have verified real-world reports for this lens.

03

Strengths, weaknesses & performance

Strengths

  • +Lab-tested as extremely sharp from f/1.4
  • +Negligible colour fringing and low distortion in testing
  • +Internal focusing, length stays at 124mm
  • +Sealed against dust and splashes, Aqua-Dura coating

Weaknesses

  • −1,065g and 88 x 124mm, very large for a 50mm
  • −Autofocus tested as slow for a 50mm f/1.4
  • −Close focus only 0.6m (1:10)
  • −Very high price

Six-axis rating

Ratings are published once at least two independent professional reviews have been read.

04

Technical specifications

Optics
MountL-Mount (FF) · full frame
Focal length50mm
CategoryStandard
Maximum aperturef/1.4
Minimum aperturef/22
Construction11 elements in 9 groups
Special elements2x Aspherical (4 aspherical surfaces) · 4x Anomalous partial dispersion glass · Aqua-Dura coating
Aperture blades9
Focus
Focus typeAutofocus
DriveMotorized internal focusing (motor type not stated)
Minimum focus0.60m
Max magnification0.10×
StabilisationNone (uses body IBIS)
TeleconvertersNot supported
Body
Weight1,065g
Diameter × length88.0 × 124.0mm
Filter thread⌀82mm
Weather sealingYes
Aperture ringNo
De-clickable apertureNo
Release year2016
Launch MSRPUnconfirmed
05

Sources

Verified 2026-10-25 against the pages below. Specifications come from the maker; summaries only reflect reviews and owner reports we actually read.

Specifications

  • leica-camera.com› sites/default/files/pm-55409-160915_Datenblatt_Summilux-SL-5
  • leicacamerausa.com› leica-summilux-sl-50mm-f-1-4-asph.html
  • digitalcameraworld.com› reviews/leica-summilux-sl-50mm-f14-asph-review
  • shuttermuse.com› a-complete-list-of-leica-sl-l-mount-lenses-and-their-specifi

Professional reviews

  • digitalcameraworld.com› reviews/leica-summilux-sl-50mm-f14-asph-review
06

Similar focal length alternatives

  • VSSummilux-SL 50 f/1.4 ASPH. vs 50mm F1.05 (L-Mount)
  • VSSummilux-SL 50 f/1.4 ASPH. vs AF 50mm F1.8 (L-Mount)
  • VSSummilux-SL 50 f/1.4 ASPH. vs APO-Summicron-SL 50 f/2 ASPH.
  • 7Artisans

    50mm F1.05 (L-Mount)

    7Artisans 50mm F1.05 (L-Mount)
    50mmF1.05
    WT
    606g
    FLT
    ⌀58mm
    MFD
    0.57m
    MSRP
    —
    MFRING·DC
  • 7Artisans

    AF 50mm F1.8 (L-Mount)

    7Artisans AF 50mm F1.8 (L-Mount)
    50mmF1.8
    WT
    421g
    FLT
    ⌀62mm
    MFD
    0.50m
    MSRP
    $228
    AFRING·DC
  • LeicaAPO-Summicron-SL

    APO-Summicron-SL 50 f/2 ASPH.

    Leica APO-Summicron-SL 50 f/2 ASPH.
    50mmF2
    WT
    740g
    FLT
    ⌀67mm
    MFD
    0.35m
    MSRP
    $4,495
    AFWR