Wide-angle zoom · Full frame

Panasonic S 18-40mm f/4.5-6.3

The Panasonic S 18-40mm f/4.5-6.3 is a full frame zoom lens (18–40 mm, f/4.5–6.3) for L-Mount. It belongs to the wide-angle zoom class — ideal for landscapes, architecture, interiors and astrophotography.

18–40 mmf/4.5–6.3L-Mount
18–40 mm
Focal length
f/4.5–6.3
Maximum aperture
100°–57°
Diagonal angle of view (Full frame)
Full frame
Designed for
2.2×
Zoom ratio

Specifications#

Model
S 18-40mm f/4.5-6.3
Lens type
Wide-angle zoom
Focal length
18–40 mm
Maximum aperture
f/4.5–6.3
Image circle
Full frame (36×24 mm)
Mount(s)
L-Mount
Projection
Rectilinear
Lensfun correction profile
Yes — distortion/vignetting/TCA

Equivalent focal length on different cameras#

Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).

Camera formatAt 18 mmAt 27 mmAt 40 mmEquiv. aperture (DoF)
Full frame18 mm · 100°27 mm · 77°40 mm · 57°f/4.5
APS-C27 mm · 76°40 mm · 55°60 mm · 39°f/6.8
APS-C (Canon)29 mm · 73°43 mm · 53°64 mm · 37°f/7.2
Micro Four Thirds36 mm · 62°54 mm · 44°80 mm · 30°f/9.0

Depth of field & background blur#

Computed on its native Full frame format (CoC 30 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 20 mm f/5.6 on full frame.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
18 mmf/4.598.3 cm10.4 m∞∞2.42 m0.1%
18 mmf/83.09 m∞∞∞1.37 m0.1%
27 mmf/4.537.2 cm1.69 m60.6 m∞5.43 m0.2%
27 mmf/871.4 cm4.49 m∞∞3.06 m0.1%
40 mmf/4.516.3 cm68.0 cm5.07 m57.2 m11.9 m0.5%
40 mmf/829.4 cm1.29 m16.7 m∞6.71 m0.3%

Handheld & night-sky limits#

NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).

BodyMin. handheld shutter (longest focal)500 rule at 18 mmNPF at 18 mm, f/4.5
Full frame1/40 s28 s19 s
APS-C1/60 s19 s15 s
APS-C (Canon)1/60 s17 s15 s
Micro Four Thirds1/80 s14 s14 s

Compatible cameras#

Bodies in our database with a native L-Mount mount.

Adapt it to other systems#

Sony E-mountNikon ZFujifilm X-mountCanon EF-MHasselblad XCDNikon 1 (CX)Pentax Q

Similar lenses#

Frequently asked questions#

Is the Panasonic S 18-40mm f/4.5-6.3 full frame?

Yes — it covers the full 36 × 24 mm frame.

What is the Panasonic S 18-40mm f/4.5-6.3 equivalent to on APS-C?

On a 1.5× APS-C body it frames like 27–60 mm, and like 29–64 mm on Canon APS-C.

What is the Panasonic S 18-40mm f/4.5-6.3 good for?

As a wide-angle zoom it suits landscapes, architecture, interiors and astrophotography.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources