Skip to content
LensFinder.org
Leica Summicron-T 23mm f/2 ASPH

Leica L-Mount Autofocus

Leica Summicron-T 23mm f/2 ASPH

Focal length
23 mm
Aperture
f/2
Weight
154 g
Filter diameter
52 mm
Min. focus distance
35 cm
Length
37 mm
Check price on Amazon 1

At a Glance

This is a compact moderate wide-angle prime for APS-C cameras on L-Mount, giving a 35 mm full-frame equivalent view. Its f/2 aperture allows shorter shutter times in dim light, and at 154 g it stays light. Autofocus is built in, and the minimum focus distance is 35 cm. The focal length suits street, reportage and travel photography.

Good for

  • Street
  • Reportage
  • Everyday
  • Travel

Worth knowing

  • APS-C image circle: on full-frame cameras only usable in crop mode, at reduced resolution.

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

Technical Specifications

Report an error

Is a value wrong or missing for Leica Summicron-T 23mm f/2 ASPH? Tell us what is wrong.

Min. focal length
23 mm
Max. focal length
23 mm
Max. aperture (min. zoom)
f/2
Max. aperture (max. zoom)
f/2
Min. aperture
f/16
Elements
9
Groups
6
Weight
154 g (0.34 lb)
Filter diameter
52 mm
Min. focus distance
35 cm (13.78 in)
Max. magnification
1:12.7 (0.08×)
Length
37 mm (1.46 in)
Diameter
63 mm (2.48 in)
Released
May 2014

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 Summicron-T 23mm f/2 ASPH fit?

The Leica Summicron-T 23mm f/2 ASPH is designed for APS-C sensors. On APS-C L-Mount cameras its field of view equals 35 mm in full-frame terms. Full-frame bodies use it in APS-C (crop) mode, recording only part of the sensor and fewer megapixels.

L-Mount cameras

Full frame (in APS-C mode):
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 Summicron-T 23mm f/2 ASPH compared

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

LensLeica Summicron-T 23mm f/2 ASPHSigma 23mm F1.4 DC DN | CSigma 24mm F2 DG DN | CSG-image MF 25mm F1.8
Focal length23 mm23 mm24 mm25 mm
Max. aperturef/2f/1.4f/2f/1.8
Weight154 g340 g365 g186 g
Filter diameter52 mm52 mm62 mm43 mm
Min. focus distance35 cm25 cm24.5 cm25 cm
Length37 mm76.9 mm72 mm30 mm
Autofocusyesyesyesno
Image stabilizationnononono
Open these lenses in the comparison and add more

Leica Summicron-T 23mm f/2 ASPH: FAQ

Does the Leica Summicron-T 23mm f/2 ASPH have autofocus?

Yes, the Leica Summicron-T 23mm f/2 ASPH has autofocus.

Does the Leica Summicron-T 23mm f/2 ASPH have image stabilization?

No, the Leica Summicron-T 23mm f/2 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 Summicron-T 23mm f/2 ASPH weigh?

The Leica Summicron-T 23mm f/2 ASPH weighs 154 g. It is 37 mm long with a diameter of 63 mm.

What filter size does the Leica Summicron-T 23mm f/2 ASPH use?

The Leica Summicron-T 23mm f/2 ASPH takes 52 mm screw-in filters.

How close can the Leica Summicron-T 23mm f/2 ASPH focus?

The minimum focus distance of the Leica Summicron-T 23mm f/2 ASPH is 35 cm, measured from the sensor plane.

Is the Leica Summicron-T 23mm f/2 ASPH a full-frame lens?

No, the Leica Summicron-T 23mm f/2 ASPH is an APS-C lens. On APS-C cameras its field of view equals 35 mm in full-frame terms.

Mastodon