Panasonic·CW ID: 1731385·MFR ID: S-R1840

S 18-40mm f4.5-6.3

Name: Panasonic S 18-40mm f4.5-6.3
Brand: Panasonic
SKU: 1731385
Price: 549.99 USD
Availability: InStock

$549.99

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Brand Panasonic System Panasonic Lumix S

The Panasonic LUMIX S 18-40mm f/4.5-6.3 is the smallest and lightest zoom Panasonic has made for full-frame L-mount: 155g, and 40.9mm long with the barrel retracted. The range is unusual and practical, running from a 100 degree ultra-wide at 18mm to a normal 40mm, so interiors, architecture, and everyday snapshots come off one lens.

Eight elements in seven groups, with three aspherical, two ED, and one UHR element, do the correction work, and it focuses to 0.15m from 18mm through 21mm for 0.28x magnification. The barrel is dust and splash resistant to 14F with a fluorine coating on the front element, and focus breathing is suppressed for video. Worth knowing before you buy: there is no optical stabilization, no hood in the box, and the filter thread is 62mm rather than the 67mm the LUMIX S f/1.8 primes share. It was built to match the S9, and we can put the pair in your hands at Camera West.

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18-40mm zoom for full-frame L-mount cameras
F4.5 at 18mm to F6.3 at 40mm, F22 to F32 minimum
Retractable barrel, approx. 40.9mm long when retracted
Approx. 155g (0.34lb)
8 elements in 7 groups
3 aspherical, 2 ED, and 1 UHR elements
100 to 57 degree angle of view
0.15m (0.49ft) closest focus from 18mm to 21mm
0.28x maximum magnification at 21mm
7-blade circular aperture diaphragm
62mm filter thread
Focus breathing suppression for video
Fluorine coating on the front element
Dust and splash resistant, rated to -10 C (14 F)
No optical image stabilization

Scope of Delivery:

Panasonic LUMIX S 18-40mm f/4.5-6.3 lens (S-R1840)
Front lens cap
Rear lens cap

Limited Warranty:

Panasonic covers this lens with a limited one-year manufacturer warranty in the United States against defects in materials and workmanship. Keep your receipt as proof of purchase date. Camera West is an authorized Panasonic dealer, so your lens arrives with that coverage intact and we can help with any service question that comes up.

General

Mount: Leica Camera AG L-Mount

Format: Full-frame

Focal Length: 18mm to 40mm

Angle of View: 100 degrees (wide) to 57 degrees (tele)

Optical Image Stabilizer: No

Dust and Splash Resistant: Yes (does not guarantee against damage from direct contact with dust and water)

Recommended Operating Temperature: -10 C to 40 C (14 F to 104 F)

Permissible Relative Humidity: 10% RH to 80% RH

Optical Design

Lens Construction: 8 elements in 7 groups (protective glass not included in the count)

Special Elements: 3 aspherical, 2 ED, 1 UHR

Coating: Fluorine coating on the front element

Focusing

Focus Type: Autofocus

In Focus Distance: 0.15m (0.49ft) to infinity from 18mm to 21mm; 0.35m (1.15ft) to infinity at the tele end, from the focus distance reference line

Maximum Magnification: 0.28x at 21mm

Aperture

Maximum Aperture: F4.5 (wide) to F6.3 (tele)

Minimum Aperture: F22 (wide) to F32 (tele)

Diaphragm: 7 blades, circular aperture

Dimensions

Filter Size: 62mm

Maximum Diameter: 67.9mm / 2.67in

Overall Length: Approx. 40.9mm / 1.61in with the barrel retracted

Weight: Approx. 155g / 0.34lb

Learn More

Barely There

Panasonic called this the world's smallest and lightest zoom for AF full-frame mirrorless as of October 8, 2024, and the thinnest at 40.9mm with the barrel retracted. It weighs 155g. On an S9 the whole camera goes back to being something you carry without thinking about it, which is the point of the lens.

18mm to 40mm Is an Odd, Useful Range

Most kit zooms start at 24mm or 28mm. Starting at 18mm gives you a 100 degree field for interiors, tight streets, and big landscapes, and 40mm at the long end is a normal perspective for a snapshot or a loose portrait. It is not a wide-to-tele zoom, so plan on a second lens if you need reach.

What You Give Up

The aperture runs F4.5 at 18mm to F6.3 at 40mm and there is no optical stabilization in the lens, so on a body without in-body stabilization you will want light or a higher ISO. No hood ships in the box and the filter thread is 62mm, not the 67mm the LUMIX S f/1.8 primes use. In exchange you get a dust and splash resistant barrel rated to 14 F, a fluorine coating on the front element, and quiet autofocus with focus breathing suppressed for video.

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