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Leica APO-Summicron-SL 28mm F2 ASPH

Leica L-Mount Autofocus

Leica APO-Summicron-SL 28mm F2 ASPH

Focal length
28 mm
Aperture
f/2
Weight
700 g
Filter diameter
67 mm
Min. focus distance
24 cm
Length
102 mm
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At a Glance

With a 28 mm focal length and an f/2 aperture, this wide-angle prime for full-frame L-Mount cameras gathers enough light for shorter shutter times in dim scenes. Autofocus is built in. The lens focuses down to 24 cm at 1:5 (0.2x). It suits landscapes, reportage and night sky work.

Good for

  • Landscape
  • Reportage
  • Night sky

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

Technical Specifications

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Min. focal length
28 mm
Max. focal length
28 mm
Max. aperture (min. zoom)
f/2
Max. aperture (max. zoom)
f/2
Min. aperture
f/22
Elements
13
Groups
10
Weight
700 g (1.54 lb)
Filter diameter
67 mm
Min. focus distance
24 cm (9.45 in)
Max. magnification
1:5 (0.2×)
Length
102 mm (4.02 in)
Diameter
73 mm (2.87 in)
Released
February 2021

Manufacturer data: leica-camera.com, 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 28mm F2 ASPH fit?

The Leica APO-Summicron-SL 28mm 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 42 mm in full-frame terms.

L-Mount cameras

Full frame:
Leica SL3-P,Leica SL3-S,Sigma BF,Panasonic Lumix S1II,Panasonic Lumix S1IIE,Panasonic Lumix S1RII,Leica SL3,Panasonic Lumix S9,Blackmagic PYXIS 6K,Panasonic Lumix S5II,Panasonic Lumix S5IIX,Blackmagic Cinema Camera 6K,Panasonic Lumix BS1H,Leica SL2-S,Panasonic Lumix S5,Sigma fp L,Leica SL2,Panasonic Lumix S1,Panasonic Lumix S1R,Panasonic Lumix S1H,Sigma fp,Leica SL (Typ 601)
APS-C:
Leica CL,Leica TL2,Leica TL,Leica T (Typ 701)

Leica APO-Summicron-SL 28mm F2 ASPH compared

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

LensLeica APO-Summicron-SL 28mm F2 ASPHSigma 28mm F1.4 DG HSM ArtSigma 24mm F2 DG DN | CLensbaby Velvet 28mm f/2.5
Focal length28 mm28 mm24 mm28 mm
Max. aperturef/2f/1.4f/2f/2.5
Weight700 g960 g365 g594 g
Filter diameter67 mm77 mm62 mm67 mm
Min. focus distance24 cm28 cm24.5 cm4.9 cm
Length102 mm131.7 mm72 mm89 mm
Autofocusyesyesyesno
Image stabilizationnononono
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Leica APO-Summicron-SL 28mm F2 ASPH: FAQ

Does the Leica APO-Summicron-SL 28mm F2 ASPH have autofocus?

Yes, the Leica APO-Summicron-SL 28mm F2 ASPH has autofocus.

Does the Leica APO-Summicron-SL 28mm F2 ASPH have image stabilization?

No, the Leica APO-Summicron-SL 28mm 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 28mm F2 ASPH weigh?

The Leica APO-Summicron-SL 28mm F2 ASPH weighs 700 g. It is 102 mm long with a diameter of 73 mm.

What filter size does the Leica APO-Summicron-SL 28mm F2 ASPH use?

The Leica APO-Summicron-SL 28mm F2 ASPH takes 67 mm screw-in filters.

How close can the Leica APO-Summicron-SL 28mm F2 ASPH focus?

The minimum focus distance of the Leica APO-Summicron-SL 28mm F2 ASPH is 24 cm, measured from the sensor plane.

Is the Leica APO-Summicron-SL 28mm F2 ASPH a full-frame lens?

Yes, the Leica APO-Summicron-SL 28mm F2 ASPH covers full frame. On APS-C cameras its field of view equals 42 mm in full-frame terms.

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