Manufacturer web-site: https://fujifilm-x.com/global/products/lenses/xf18-55mmf28-4-r-lm-ois/


Abbreviations
Super EBCMulti-layer Super Electron Beam coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models
XFThe lens is designed for Fujifilm APS-C digital mirrorless cameras
RThe lens is equipped with aperture ring
LMThe lens is equipped with Linear Motor
OISThe lens is equipped with Optical Image Stabilizer
Main info
AnnouncedSeptember 2012
Original nameFUJINON ASPHERICAL LENS SUPER EBC XF 18-55mm 1:2.8-4 R LM OIS
SystemFujifilm X (2012)
ClassSlow APS-C-format standard zoom lens
Optical design
Focal length range18mm - 55mm [3.1X zoom ratio]
Speed rangeF/2.8 @ 18mm - F/4 @ 55mm
Maximum formatAPS-C
MountFujifilm X
Diagonal angle of view76.5° @ 18mm – 29° @ 55mm (Fujifilm X APS-C)
Lens construction14 elements in 10 groups
3 aspherical elements, 1 low dispersion element
Internal focusing

Optical bench

35mm comparison
35mm equivalent focal length range27mm–84mm (in terms of field of view)
35mm equivalent speed rangeF/4.3 @ 18mm - F/6.1 @ 55mm (in terms of depth of field)
Diaphragm
TypeAutomatic
Aperture controlAperture ring (manual settings + auto exposure setting)
Number of blades7 (rounded diaphragm opening)
Step size⅓EV (19 steps)
Minimal apertureƒ/22
Maximal apertureƒ/2.9–ƒ/4
Zooming
MechanismManual
ControlZoom ring
TypeRotary
MethodExtends while zooming
Focusing
Closest focusing distance0.6m–∞
0.3m @ 18mm (in MACRO mode)
0.4m @ 55mm
Magnification ratio1:6.67 @ 55mm
Focusing modesAutofocus, manual focus
Autofocus motorLinear motor
Manual focus controlFocusing ring
Focus mode selectorNone; focusing mode is set from the camera
Manual focus override in autofocus modeDetermined by the camera
Optical Image Stabilizer
TypeBuilt-in
FeaturesDetermined by the camera
EfficiencyUp to 4 stops @ 55mm
Physical characteristics
Weight310g
Maximum diameter x Length⌀65×70.4mm / 97.9mm @ 55mm
Accessories
FiltersScrew-type, 58mm
Lens hoodBayonet-type petal-shaped
TeleconvertersNot compatible

Source of data:

  1. https://lens-db.com/fujifilm-super-ebc-fujinon-xf-18-55mm-f28-4-aspherical-r-lm-ois-2012/
  2. https://fujifilm-x.com/global/products/lenses/xf18-55mmf28-4-r-lm-ois/specifications/