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NiSi 15mm f/4 Sunstar ASPH

Leica L-Mount

NiSi 15mm f/4 Sunstar ASPH

Focal length
15 mm
Aperture
f/4
Weight
470 g
Filter diameter
72 mm
Min. focus distance
20 cm
Length
80.5 mm
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At a Glance

On L-Mount full frame, this ultra-wide prime provides 15 mm at f/4 with manual focus only. It is aimed at landscape, architecture and interiors. The minimum focus distance is 20 cm, and the weight is 470 g. Low dispersion elements, an aspherical element and an all-metal body are part of the build.

Good for

  • Landscape
  • Architecture
  • Interiors

Worth knowing

  • No autofocus: focusing is manual only.

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

Technical Specifications

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Min. focal length
15 mm
Max. focal length
15 mm
Max. aperture (min. zoom)
f/4
Max. aperture (max. zoom)
f/4
Min. aperture
f/22
Elements
12
Groups
10
Weight
470 g (1.04 lb)
Filter diameter
72 mm
Min. focus distance
20 cm (7.87 in)
Max. magnification
1:7.7 (0.13×)
Length
80.5 mm (3.17 in)
Diameter
75.6 mm (2.98 in)
Released
April 2021

Manufacturer data: cdn1.nisifilters.com.au, en.nisioptics.com, en.nisioptics.com, en.nisioptics.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 NiSi 15mm f/4 Sunstar ASPH fit?

The NiSi 15mm f/4 Sunstar 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 23 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)

NiSi 15mm f/4 Sunstar ASPH compared

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

LensNiSi 15mm f/4 Sunstar ASPH7artisans Photoelectric 15mm f/4Venus Laowa 15mm F4 1:1 MacroVenus Laowa 15mm f/4.5 Zero-D Shift
Focal length15 mm15 mm15 mm15 mm
Max. aperturef/4f/4f/4f/4.5
Weight470 g536 g410 g597 g
Filter diameter72 mm77 mm77 mm–
Min. focus distance20 cm40 cm12.2 cm20 cm
Length80.5 mm97 mm64 mm103 mm
Autofocusnononono
Image stabilizationnononono
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NiSi 15mm f/4 Sunstar ASPH: FAQ

Does the NiSi 15mm f/4 Sunstar ASPH have autofocus?

No, the NiSi 15mm f/4 Sunstar ASPH has no autofocus; you focus it manually.

Does the NiSi 15mm f/4 Sunstar ASPH have image stabilization?

No, the NiSi 15mm f/4 Sunstar ASPH has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the NiSi 15mm f/4 Sunstar ASPH weigh?

The NiSi 15mm f/4 Sunstar ASPH weighs 470 g. It is 80.5 mm long with a diameter of 75.6 mm.

What filter size does the NiSi 15mm f/4 Sunstar ASPH use?

The NiSi 15mm f/4 Sunstar ASPH takes 72 mm screw-in filters.

How close can the NiSi 15mm f/4 Sunstar ASPH focus?

The minimum focus distance of the NiSi 15mm f/4 Sunstar ASPH is 20 cm, measured from the sensor plane.

Is the NiSi 15mm f/4 Sunstar ASPH a full-frame lens?

Yes, the NiSi 15mm f/4 Sunstar ASPH covers full frame. On APS-C cameras its field of view equals 23 mm in full-frame terms.

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