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Leica APO-Summicron-SL 50mm F2 ASPH

Leica L-Mount Autofocus

Leica APO-Summicron-SL 50mm F2 ASPH

Focal length
50 mm
Aperture
f/2
Weight
740 g
Filter diameter
67 mm
Min. focus distance
35 cm
Length
102 mm

At a Glance

This 50 mm standard prime brings autofocus and an f/2 aperture to full-frame L-Mount cameras. Its optical design includes four aspherical surfaces, and the aperture is electronically controlled. It focuses as close as 35 cm at 1:5 (0.2x). The wide aperture allows short shutter times in low light, and the lens also covers everyday and street photography.

Good for

  • Everyday
  • Street
  • Low light

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

Min. focal length
50 mm
Max. focal length
50 mm
Max. aperture (min. zoom)
f/2
Max. aperture (max. zoom)
f/2
Min. aperture
f/22
Elements
12
Groups
10
Weight
740 g (1.63 lb)
Filter diameter
67 mm
Min. focus distance
35 cm (13.78 in)
Max. magnification
1:5 (0.2×)
Length
102 mm (4.02 in)
Diameter
73 mm (2.87 in)
Released
August 2019

Manufacturer data: leica-camera.com

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Leica APO-Summicron-SL 50mm F2 ASPH fit?

The Leica APO-Summicron-SL 50mm F2 ASPH is a full-frame lens for L-Mount cameras. On full-frame bodies it uses the whole sensor; on APS-C L-Mount cameras its field of view equals 75 mm in full-frame terms.

L-Mount cameras

Leica APO-Summicron-SL 50mm F2 ASPH compared

Key specs side by side with the most similar L-Mount lenses.

LensLeica APO-Summicron-SL 50mm F2 ASPHLeica Summicron-SL 50mm f/2 ASPH.Sigma 50mm F2 DG DN | CViltrox AF 50mm F2
Focal length50 mm50 mm50 mm50 mm
Max. aperturef/2f/2f/2f/2
Weight740 g402 g350 g205 g
Filter diameter67 mm67 mm58 mm58 mm
Min. focus distance35 cm45 cm45 cm51 cm
Length102 mm83 mm68 mm54.4 mm
Autofocusyesyesyesyes
Image stabilizationnononono
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Leica APO-Summicron-SL 50mm F2 ASPH: FAQ

Does the Leica APO-Summicron-SL 50mm F2 ASPH have autofocus?

Yes, the Leica APO-Summicron-SL 50mm F2 ASPH has autofocus.

Does the Leica APO-Summicron-SL 50mm F2 ASPH have image stabilization?

No, the Leica APO-Summicron-SL 50mm F2 ASPH has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the Leica APO-Summicron-SL 50mm F2 ASPH weigh?

The Leica APO-Summicron-SL 50mm F2 ASPH weighs 740 g. It is 102 mm long with a diameter of 73 mm.

What filter size does the Leica APO-Summicron-SL 50mm F2 ASPH use?

The Leica APO-Summicron-SL 50mm F2 ASPH takes 67 mm screw-in filters.

How close can the Leica APO-Summicron-SL 50mm F2 ASPH focus?

The minimum focus distance of the Leica APO-Summicron-SL 50mm F2 ASPH is 35 cm, measured from the sensor plane.

Is the Leica APO-Summicron-SL 50mm F2 ASPH a full-frame lens?

Yes, the Leica APO-Summicron-SL 50mm F2 ASPH covers full frame. On APS-C cameras its field of view equals 75 mm in full-frame terms.

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