SG-image

18mm ƒ/6.3

SG-image MF 18mm f6.3 APS-C Ultra Slim Pancake Lens

SG-image 18mm ƒ/6.3 is an 18mm prime lens for the Fujifilm X mount, equivalent to 27mm on full frame, with a maximum aperture of ƒ/6.3 and manual focus. It weighs 78 g.

SG-image 18mm ƒ/6.3
Black · 2 finishes
Photo SG-image

Optics

Type
Prime · Photo
Focal length
18mm (27mm eq.)
Angle of view
≈ 76°
Aperture
ƒ/6.3
Blades
—
Aperture ring
—
Construction
6 el. / 4 gr.
Special elements
2 high-refractive-index elements
Designed for
APS-C

Focus

Type
Manual
Minimum distance
0.20 m
Magnification
—

Size and mount

Diameter × length
60 × 14 mm
Weight
78 g
Filter
37 mm front
Mount
Native X mount

Features

Yes
Pancake
No
Electronic contacts

History

Maker
SG-image · CN
Announced
—
Status
Current

Fixed F6.3 aperture. Filter 37 mm on the lens, 49 mm on the hood. Size excludes mount and hood. A "60th ULTRAMAN Limited Edition" with the same specifications was sold in Japan in 2026. The distributor says "release without lens" must be enabled, so the lens has no electronic contacts.

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